Home / 132,436.80-198,655.20-117,921.60

Finding the Fourth Proportional to 132,436.80, 198,655.20 and 117,921.60

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Solution

The fourth proportional to 132,436.80, 198,655.20 and 117,921.60 is: 176,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,436.80 : 198,655.20 = 117,921.60 : x
  2. Step 2: Convert to fraction form
    132,436.80/198,655.20 = 117,921.60/x
  3. Step 3: Cross multiply
    132,436.80x = 198,655.20 × 117,921.60
  4. Step 4: Simplify right side
    132,436.80x = 23,425,739,032.32
  5. Step 5: Solve for x
    x = 23,425,739,032.32/132,436.80
  6. Step 6: Final answer
    x = 176,882.40

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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.