Home / 138,058.08-207,087.42-38,218.56

Finding the Fourth Proportional to 138,058.08, 207,087.42 and 38,218.56

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Solution

The fourth proportional to 138,058.08, 207,087.42 and 38,218.56 is: 57,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,058.08 : 207,087.42 = 38,218.56 : x
  2. Step 2: Convert to fraction form
    138,058.08/207,087.42 = 38,218.56/x
  3. Step 3: Cross multiply
    138,058.08x = 207,087.42 × 38,218.56
  4. Step 4: Simplify right side
    138,058.08x = 7,914,582,986.52
  5. Step 5: Solve for x
    x = 7,914,582,986.52/138,058.08
  6. Step 6: Final answer
    x = 57,327.92

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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.