Home / 132,155.34-198,239.92-61,144.30

Finding the Fourth Proportional to 132,155.34, 198,239.92 and 61,144.30

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Solution

The fourth proportional to 132,155.34, 198,239.92 and 61,144.30 is: 91,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,155.34 : 198,239.92 = 61,144.30 : x
  2. Step 2: Convert to fraction form
    132,155.34/198,239.92 = 61,144.30/x
  3. Step 3: Cross multiply
    132,155.34x = 198,239.92 × 61,144.30
  4. Step 4: Simplify right side
    132,155.34x = 12,121,241,579.33
  5. Step 5: Solve for x
    x = 12,121,241,579.33/132,155.34
  6. Step 6: Final answer
    x = 91,719.65

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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.