Home / 138,822.20-191,575.24-75,160.00

Finding the Fourth Proportional to 138,822.20, 191,575.24 and 75,160.00

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Solution

The fourth proportional to 138,822.20, 191,575.24 and 75,160.00 is: 103,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,822.20 : 191,575.24 = 75,160.00 : x
  2. Step 2: Convert to fraction form
    138,822.20/191,575.24 = 75,160.00/x
  3. Step 3: Cross multiply
    138,822.20x = 191,575.24 × 75,160.00
  4. Step 4: Simplify right side
    138,822.20x = 14,398,795,195.66
  5. Step 5: Solve for x
    x = 14,398,795,195.66/138,822.20
  6. Step 6: Final answer
    x = 103,721.12

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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.