Home / 125,299.38-187,949.70-31,805.16

Finding the Fourth Proportional to 125,299.38, 187,949.70 and 31,805.16

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Solution

The fourth proportional to 125,299.38, 187,949.70 and 31,805.16 is: 47,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299.38 : 187,949.70 = 31,805.16 : x
  2. Step 2: Convert to fraction form
    125,299.38/187,949.70 = 31,805.16/x
  3. Step 3: Cross multiply
    125,299.38x = 187,949.70 × 31,805.16
  4. Step 4: Simplify right side
    125,299.38x = 5,977,770,280.45
  5. Step 5: Solve for x
    x = 5,977,770,280.45/125,299.38
  6. Step 6: Final answer
    x = 47,707.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.