Home / 102,691.33-141,708.94-57,360.28

Finding the Fourth Proportional to 102,691.33, 141,708.94 and 57,360.28

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Solution

The fourth proportional to 102,691.33, 141,708.94 and 57,360.28 is: 79,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,691.33 : 141,708.94 = 57,360.28 : x
  2. Step 2: Convert to fraction form
    102,691.33/141,708.94 = 57,360.28/x
  3. Step 3: Cross multiply
    102,691.33x = 141,708.94 × 57,360.28
  4. Step 4: Simplify right side
    102,691.33x = 8,128,464,476.90
  5. Step 5: Solve for x
    x = 8,128,464,476.90/102,691.33
  6. Step 6: Final answer
    x = 79,154.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.