Home / 138,910.14-191,695.82-75,248.19

Finding the Fourth Proportional to 138,910.14, 191,695.82 and 75,248.19

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Solution

The fourth proportional to 138,910.14, 191,695.82 and 75,248.19 is: 103,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,910.14 : 191,695.82 = 75,248.19 : x
  2. Step 2: Convert to fraction form
    138,910.14/191,695.82 = 75,248.19/x
  3. Step 3: Cross multiply
    138,910.14x = 191,695.82 × 75,248.19
  4. Step 4: Simplify right side
    138,910.14x = 14,424,763,109.32
  5. Step 5: Solve for x
    x = 14,424,763,109.32/138,910.14
  6. Step 6: Final answer
    x = 103,842.41

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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.