Home / 102,502.67-141,453.92-57,179.53

Finding the Fourth Proportional to 102,502.67, 141,453.92 and 57,179.53

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Solution

The fourth proportional to 102,502.67, 141,453.92 and 57,179.53 is: 78,907.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,502.67 : 141,453.92 = 57,179.53 : x
  2. Step 2: Convert to fraction form
    102,502.67/141,453.92 = 57,179.53/x
  3. Step 3: Cross multiply
    102,502.67x = 141,453.92 × 57,179.53
  4. Step 4: Simplify right side
    102,502.67x = 8,088,267,669.09
  5. Step 5: Solve for x
    x = 8,088,267,669.09/102,502.67
  6. Step 6: Final answer
    x = 78,907.87

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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.