Home / 132,311.12-198,465.72-53,424.20

Finding the Fourth Proportional to 132,311.12, 198,465.72 and 53,424.20

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Solution

The fourth proportional to 132,311.12, 198,465.72 and 53,424.20 is: 80,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,311.12 : 198,465.72 = 53,424.20 : x
  2. Step 2: Convert to fraction form
    132,311.12/198,465.72 = 53,424.20/x
  3. Step 3: Cross multiply
    132,311.12x = 198,465.72 × 53,424.20
  4. Step 4: Simplify right side
    132,311.12x = 10,602,872,318.42
  5. Step 5: Solve for x
    x = 10,602,872,318.42/132,311.12
  6. Step 6: Final answer
    x = 80,135.91

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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.