Home / 132,169.12-198,292.56-53,242.72

Finding the Fourth Proportional to 132,169.12, 198,292.56 and 53,242.72

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Solution

The fourth proportional to 132,169.12, 198,292.56 and 53,242.72 is: 79,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,169.12 : 198,292.56 = 53,242.72 : x
  2. Step 2: Convert to fraction form
    132,169.12/198,292.56 = 53,242.72/x
  3. Step 3: Cross multiply
    132,169.12x = 198,292.56 × 53,242.72
  4. Step 4: Simplify right side
    132,169.12x = 10,557,635,250.16
  5. Step 5: Solve for x
    x = 10,557,635,250.16/132,169.12
  6. Step 6: Final answer
    x = 79,879.74

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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.