Home / 138,910.39-191,696.33-75,248.17

Finding the Fourth Proportional to 138,910.39, 191,696.33 and 75,248.17

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Solution

The fourth proportional to 138,910.39, 191,696.33 and 75,248.17 is: 103,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,910.39 : 191,696.33 = 75,248.17 : x
  2. Step 2: Convert to fraction form
    138,910.39/191,696.33 = 75,248.17/x
  3. Step 3: Cross multiply
    138,910.39x = 191,696.33 × 75,248.17
  4. Step 4: Simplify right side
    138,910.39x = 14,424,797,651.98
  5. Step 5: Solve for x
    x = 14,424,797,651.98/138,910.39
  6. Step 6: Final answer
    x = 103,842.47

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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.