Home / 138,976.18-208,743.24-82,925.68

Finding the Fourth Proportional to 138,976.18, 208,743.24 and 82,925.68

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Solution

The fourth proportional to 138,976.18, 208,743.24 and 82,925.68 is: 124,554.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,976.18 : 208,743.24 = 82,925.68 : x
  2. Step 2: Convert to fraction form
    138,976.18/208,743.24 = 82,925.68/x
  3. Step 3: Cross multiply
    138,976.18x = 208,743.24 × 82,925.68
  4. Step 4: Simplify right side
    138,976.18x = 17,310,175,122.40
  5. Step 5: Solve for x
    x = 17,310,175,122.40/138,976.18
  6. Step 6: Final answer
    x = 124,554.98

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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.