Home / 102,715.13-141,753.47-57,393.24

Finding the Fourth Proportional to 102,715.13, 141,753.47 and 57,393.24

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Solution

The fourth proportional to 102,715.13, 141,753.47 and 57,393.24 is: 79,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,715.13 : 141,753.47 = 57,393.24 : x
  2. Step 2: Convert to fraction form
    102,715.13/141,753.47 = 57,393.24/x
  3. Step 3: Cross multiply
    102,715.13x = 141,753.47 × 57,393.24
  4. Step 4: Simplify right side
    102,715.13x = 8,135,690,637.58
  5. Step 5: Solve for x
    x = 8,135,690,637.58/102,715.13
  6. Step 6: Final answer
    x = 79,206.35

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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.