Home / 115,965.40-173,948.10-79,101.40

Finding the Fourth Proportional to 115,965.40, 173,948.10 and 79,101.40

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Solution

The fourth proportional to 115,965.40, 173,948.10 and 79,101.40 is: 118,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,965.40 : 173,948.10 = 79,101.40 : x
  2. Step 2: Convert to fraction form
    115,965.40/173,948.10 = 79,101.40/x
  3. Step 3: Cross multiply
    115,965.40x = 173,948.10 × 79,101.40
  4. Step 4: Simplify right side
    115,965.40x = 13,759,538,237.34
  5. Step 5: Solve for x
    x = 13,759,538,237.34/115,965.40
  6. Step 6: Final answer
    x = 118,652.10

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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.