Home / 138,614.18-191,287.41-74,951.82

Finding the Fourth Proportional to 138,614.18, 191,287.41 and 74,951.82

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Solution

The fourth proportional to 138,614.18, 191,287.41 and 74,951.82 is: 103,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,614.18 : 191,287.41 = 74,951.82 : x
  2. Step 2: Convert to fraction form
    138,614.18/191,287.41 = 74,951.82/x
  3. Step 3: Cross multiply
    138,614.18x = 191,287.41 × 74,951.82
  4. Step 4: Simplify right side
    138,614.18x = 14,337,339,522.59
  5. Step 5: Solve for x
    x = 14,337,339,522.59/138,614.18
  6. Step 6: Final answer
    x = 103,433.43

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1.5x scale

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.