Home / 136,337.80-204,469.26-86,342.92

Finding the Fourth Proportional to 136,337.80, 204,469.26 and 86,342.92

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Solution

The fourth proportional to 136,337.80, 204,469.26 and 86,342.92 is: 129,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,337.80 : 204,469.26 = 86,342.92 : x
  2. Step 2: Convert to fraction form
    136,337.80/204,469.26 = 86,342.92/x
  3. Step 3: Cross multiply
    136,337.80x = 204,469.26 × 86,342.92
  4. Step 4: Simplify right side
    136,337.80x = 17,654,472,958.64
  5. Step 5: Solve for x
    x = 17,654,472,958.64/136,337.80
  6. Step 6: Final answer
    x = 129,490.67

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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.