Home / 102,722.41-141,756.92-62,428.64

Finding the Fourth Proportional to 102,722.41, 141,756.92 and 62,428.64

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Solution

The fourth proportional to 102,722.41, 141,756.92 and 62,428.64 is: 86,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,722.41 : 141,756.92 = 62,428.64 : x
  2. Step 2: Convert to fraction form
    102,722.41/141,756.92 = 62,428.64/x
  3. Step 3: Cross multiply
    102,722.41x = 141,756.92 × 62,428.64
  4. Step 4: Simplify right side
    102,722.41x = 8,849,691,726.19
  5. Step 5: Solve for x
    x = 8,849,691,726.19/102,722.41
  6. Step 6: Final answer
    x = 86,151.52

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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.