Home / 102,724.83-141,757.53-57,403.18

Finding the Fourth Proportional to 102,724.83, 141,757.53 and 57,403.18

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Solution

The fourth proportional to 102,724.83, 141,757.53 and 57,403.18 is: 79,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,724.83 : 141,757.53 = 57,403.18 : x
  2. Step 2: Convert to fraction form
    102,724.83/141,757.53 = 57,403.18/x
  3. Step 3: Cross multiply
    102,724.83x = 141,757.53 × 57,403.18
  4. Step 4: Simplify right side
    102,724.83x = 8,137,333,010.95
  5. Step 5: Solve for x
    x = 8,137,333,010.95/102,724.83
  6. Step 6: Final answer
    x = 79,214.86

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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.