Home / 134,857.60-202,505.10-90,680.20

Finding the Fourth Proportional to 134,857.60, 202,505.10 and 90,680.20

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Solution

The fourth proportional to 134,857.60, 202,505.10 and 90,680.20 is: 136,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857.60 : 202,505.10 = 90,680.20 : x
  2. Step 2: Convert to fraction form
    134,857.60/202,505.10 = 90,680.20/x
  3. Step 3: Cross multiply
    134,857.60x = 202,505.10 × 90,680.20
  4. Step 4: Simplify right side
    134,857.60x = 18,363,202,969.02
  5. Step 5: Solve for x
    x = 18,363,202,969.02/134,857.60
  6. Step 6: Final answer
    x = 136,167.36

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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.