Home / 138,764.18-191,495.14-75,101.96

Finding the Fourth Proportional to 138,764.18, 191,495.14 and 75,101.96

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Solution

The fourth proportional to 138,764.18, 191,495.14 and 75,101.96 is: 103,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,764.18 : 191,495.14 = 75,101.96 : x
  2. Step 2: Convert to fraction form
    138,764.18/191,495.14 = 75,101.96/x
  3. Step 3: Cross multiply
    138,764.18x = 191,495.14 × 75,101.96
  4. Step 4: Simplify right side
    138,764.18x = 14,381,660,344.47
  5. Step 5: Solve for x
    x = 14,381,660,344.47/138,764.18
  6. Step 6: Final answer
    x = 103,641.01

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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.