Home / 138,764.93-191,496.17-75,102.71

Finding the Fourth Proportional to 138,764.93, 191,496.17 and 75,102.71

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Solution

The fourth proportional to 138,764.93, 191,496.17 and 75,102.71 is: 103,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,764.93 : 191,496.17 = 75,102.71 : x
  2. Step 2: Convert to fraction form
    138,764.93/191,496.17 = 75,102.71/x
  3. Step 3: Cross multiply
    138,764.93x = 191,496.17 × 75,102.71
  4. Step 4: Simplify right side
    138,764.93x = 14,381,881,321.62
  5. Step 5: Solve for x
    x = 14,381,881,321.62/138,764.93
  6. Step 6: Final answer
    x = 103,642.05

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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.