Home / 138,932.08-191,726.46-75,269.87

Finding the Fourth Proportional to 138,932.08, 191,726.46 and 75,269.87

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Solution

The fourth proportional to 138,932.08, 191,726.46 and 75,269.87 is: 103,872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,932.08 : 191,726.46 = 75,269.87 : x
  2. Step 2: Convert to fraction form
    138,932.08/191,726.46 = 75,269.87/x
  3. Step 3: Cross multiply
    138,932.08x = 191,726.46 × 75,269.87
  4. Step 4: Simplify right side
    138,932.08x = 14,431,226,241.02
  5. Step 5: Solve for x
    x = 14,431,226,241.02/138,932.08
  6. Step 6: Final answer
    x = 103,872.53

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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.