Home / 138,925.10-191,715.57-75,262.44

Finding the Fourth Proportional to 138,925.10, 191,715.57 and 75,262.44

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Solution

The fourth proportional to 138,925.10, 191,715.57 and 75,262.44 is: 103,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,925.10 : 191,715.57 = 75,262.44 : x
  2. Step 2: Convert to fraction form
    138,925.10/191,715.57 = 75,262.44/x
  3. Step 3: Cross multiply
    138,925.10x = 191,715.57 × 75,262.44
  4. Step 4: Simplify right side
    138,925.10x = 14,428,981,584.19
  5. Step 5: Solve for x
    x = 14,428,981,584.19/138,925.10
  6. Step 6: Final answer
    x = 103,861.59

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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.