Home / 138,306.20-207,023.72-95,360.40

Finding the Fourth Proportional to 138,306.20, 207,023.72 and 95,360.40

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Solution

The fourth proportional to 138,306.20, 207,023.72 and 95,360.40 is: 142,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,306.20 : 207,023.72 = 95,360.40 : x
  2. Step 2: Convert to fraction form
    138,306.20/207,023.72 = 95,360.40/x
  3. Step 3: Cross multiply
    138,306.20x = 207,023.72 × 95,360.40
  4. Step 4: Simplify right side
    138,306.20x = 19,741,864,271.89
  5. Step 5: Solve for x
    x = 19,741,864,271.89/138,306.20
  6. Step 6: Final answer
    x = 142,740.27

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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.