Home / 102,949.87-141,997.47-62,666.21

Finding the Fourth Proportional to 102,949.87, 141,997.47 and 62,666.21

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Solution

The fourth proportional to 102,949.87, 141,997.47 and 62,666.21 is: 86,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,949.87 : 141,997.47 = 62,666.21 : x
  2. Step 2: Convert to fraction form
    102,949.87/141,997.47 = 62,666.21/x
  3. Step 3: Cross multiply
    102,949.87x = 141,997.47 × 62,666.21
  4. Step 4: Simplify right side
    102,949.87x = 8,898,442,683.87
  5. Step 5: Solve for x
    x = 8,898,442,683.87/102,949.87
  6. Step 6: Final answer
    x = 86,434.71

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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.