Home / 138,190.25-207,154.16-54,004.42

Finding the Fourth Proportional to 138,190.25, 207,154.16 and 54,004.42

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Solution

The fourth proportional to 138,190.25, 207,154.16 and 54,004.42 is: 80,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,190.25 : 207,154.16 = 54,004.42 : x
  2. Step 2: Convert to fraction form
    138,190.25/207,154.16 = 54,004.42/x
  3. Step 3: Cross multiply
    138,190.25x = 207,154.16 × 54,004.42
  4. Step 4: Simplify right side
    138,190.25x = 11,187,240,452.82
  5. Step 5: Solve for x
    x = 11,187,240,452.82/138,190.25
  6. Step 6: Final answer
    x = 80,955.35

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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.