Home / 102,861.30-141,941.92-57,531.44

Finding the Fourth Proportional to 102,861.30, 141,941.92 and 57,531.44

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Solution

The fourth proportional to 102,861.30, 141,941.92 and 57,531.44 is: 79,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,861.30 : 141,941.92 = 57,531.44 : x
  2. Step 2: Convert to fraction form
    102,861.30/141,941.92 = 57,531.44/x
  3. Step 3: Cross multiply
    102,861.30x = 141,941.92 × 57,531.44
  4. Step 4: Simplify right side
    102,861.30x = 8,166,123,053.96
  5. Step 5: Solve for x
    x = 8,166,123,053.96/102,861.30
  6. Step 6: Final answer
    x = 79,389.65

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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.