Home / 132,530.72-198,675.24-85,158.68

Finding the Fourth Proportional to 132,530.72, 198,675.24 and 85,158.68

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Solution

The fourth proportional to 132,530.72, 198,675.24 and 85,158.68 is: 127,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.72 : 198,675.24 = 85,158.68 : x
  2. Step 2: Convert to fraction form
    132,530.72/198,675.24 = 85,158.68/x
  3. Step 3: Cross multiply
    132,530.72x = 198,675.24 × 85,158.68
  4. Step 4: Simplify right side
    132,530.72x = 16,918,921,187.08
  5. Step 5: Solve for x
    x = 16,918,921,187.08/132,530.72
  6. Step 6: Final answer
    x = 127,660.37

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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.