Home / 102,874.90-141,973.52-57,553.14

Finding the Fourth Proportional to 102,874.90, 141,973.52 and 57,553.14

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Solution

The fourth proportional to 102,874.90, 141,973.52 and 57,553.14 is: 79,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,874.90 : 141,973.52 = 57,553.14 : x
  2. Step 2: Convert to fraction form
    102,874.90/141,973.52 = 57,553.14/x
  3. Step 3: Cross multiply
    102,874.90x = 141,973.52 × 57,553.14
  4. Step 4: Simplify right side
    102,874.90x = 8,171,021,872.85
  5. Step 5: Solve for x
    x = 8,171,021,872.85/102,874.90
  6. Step 6: Final answer
    x = 79,426.78

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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.