Home / 138,648.64-207,973.02-38,823.56

Finding the Fourth Proportional to 138,648.64, 207,973.02 and 38,823.56

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Solution

The fourth proportional to 138,648.64, 207,973.02 and 38,823.56 is: 58,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,648.64 : 207,973.02 = 38,823.56 : x
  2. Step 2: Convert to fraction form
    138,648.64/207,973.02 = 38,823.56/x
  3. Step 3: Cross multiply
    138,648.64x = 207,973.02 × 38,823.56
  4. Step 4: Simplify right side
    138,648.64x = 8,074,253,020.35
  5. Step 5: Solve for x
    x = 8,074,253,020.35/138,648.64
  6. Step 6: Final answer
    x = 58,235.36

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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.