Home / 125,139.92-187,670.19-40,880.93

Finding the Fourth Proportional to 125,139.92, 187,670.19 and 40,880.93

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Solution

The fourth proportional to 125,139.92, 187,670.19 and 40,880.93 is: 61,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,139.92 : 187,670.19 = 40,880.93 : x
  2. Step 2: Convert to fraction form
    125,139.92/187,670.19 = 40,880.93/x
  3. Step 3: Cross multiply
    125,139.92x = 187,670.19 × 40,880.93
  4. Step 4: Simplify right side
    125,139.92x = 7,672,131,900.48
  5. Step 5: Solve for x
    x = 7,672,131,900.48/125,139.92
  6. Step 6: Final answer
    x = 61,308.43

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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.