Home / 102,687.98-141,707.85-57,366.62

Finding the Fourth Proportional to 102,687.98, 141,707.85 and 57,366.62

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Solution

The fourth proportional to 102,687.98, 141,707.85 and 57,366.62 is: 79,165.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,687.98 : 141,707.85 = 57,366.62 : x
  2. Step 2: Convert to fraction form
    102,687.98/141,707.85 = 57,366.62/x
  3. Step 3: Cross multiply
    102,687.98x = 141,707.85 × 57,366.62
  4. Step 4: Simplify right side
    102,687.98x = 8,129,299,673.43
  5. Step 5: Solve for x
    x = 8,129,299,673.43/102,687.98
  6. Step 6: Final answer
    x = 79,165.06

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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.