Home / 138,923.62-208,664.67-82,873.24

Finding the Fourth Proportional to 138,923.62, 208,664.67 and 82,873.24

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Solution

The fourth proportional to 138,923.62, 208,664.67 and 82,873.24 is: 124,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,923.62 : 208,664.67 = 82,873.24 : x
  2. Step 2: Convert to fraction form
    138,923.62/208,664.67 = 82,873.24/x
  3. Step 3: Cross multiply
    138,923.62x = 208,664.67 × 82,873.24
  4. Step 4: Simplify right side
    138,923.62x = 17,292,717,276.43
  5. Step 5: Solve for x
    x = 17,292,717,276.43/138,923.62
  6. Step 6: Final answer
    x = 124,476.44

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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.