Home / 115,865.40-173,927.70-89,686.20

Finding the Fourth Proportional to 115,865.40, 173,927.70 and 89,686.20

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Solution

The fourth proportional to 115,865.40, 173,927.70 and 89,686.20 is: 134,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,865.40 : 173,927.70 = 89,686.20 : x
  2. Step 2: Convert to fraction form
    115,865.40/173,927.70 = 89,686.20/x
  3. Step 3: Cross multiply
    115,865.40x = 173,927.70 × 89,686.20
  4. Step 4: Simplify right side
    115,865.40x = 15,598,914,487.74
  5. Step 5: Solve for x
    x = 15,598,914,487.74/115,865.40
  6. Step 6: Final answer
    x = 134,629.62

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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.