Home / 115,931.10-173,896.65-113,598.30

Finding the Fourth Proportional to 115,931.10, 173,896.65 and 113,598.30

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Solution

The fourth proportional to 115,931.10, 173,896.65 and 113,598.30 is: 170,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,931.10 : 173,896.65 = 113,598.30 : x
  2. Step 2: Convert to fraction form
    115,931.10/173,896.65 = 113,598.30/x
  3. Step 3: Cross multiply
    115,931.10x = 173,896.65 × 113,598.30
  4. Step 4: Simplify right side
    115,931.10x = 19,754,363,815.70
  5. Step 5: Solve for x
    x = 19,754,363,815.70/115,931.10
  6. Step 6: Final answer
    x = 170,397.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.