Home / 138,922.62-208,663.17-82,872.24

Finding the Fourth Proportional to 138,922.62, 208,663.17 and 82,872.24

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Solution

The fourth proportional to 138,922.62, 208,663.17 and 82,872.24 is: 124,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.62 : 208,663.17 = 82,872.24 : x
  2. Step 2: Convert to fraction form
    138,922.62/208,663.17 = 82,872.24/x
  3. Step 3: Cross multiply
    138,922.62x = 208,663.17 × 82,872.24
  4. Step 4: Simplify right side
    138,922.62x = 17,292,384,303.40
  5. Step 5: Solve for x
    x = 17,292,384,303.40/138,922.62
  6. Step 6: Final answer
    x = 124,474.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.