Home / 132,065.70-198,098.55-53,139.30

Finding the Fourth Proportional to 132,065.70, 198,098.55 and 53,139.30

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Solution

The fourth proportional to 132,065.70, 198,098.55 and 53,139.30 is: 79,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,065.70 : 198,098.55 = 53,139.30 : x
  2. Step 2: Convert to fraction form
    132,065.70/198,098.55 = 53,139.30/x
  3. Step 3: Cross multiply
    132,065.70x = 198,098.55 × 53,139.30
  4. Step 4: Simplify right side
    132,065.70x = 10,526,818,278.02
  5. Step 5: Solve for x
    x = 10,526,818,278.02/132,065.70
  6. Step 6: Final answer
    x = 79,708.95

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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.