Home / 132,002.70-198,004.05-72,807.90

Finding the Fourth Proportional to 132,002.70, 198,004.05 and 72,807.90

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Solution

The fourth proportional to 132,002.70, 198,004.05 and 72,807.90 is: 109,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,002.70 : 198,004.05 = 72,807.90 : x
  2. Step 2: Convert to fraction form
    132,002.70/198,004.05 = 72,807.90/x
  3. Step 3: Cross multiply
    132,002.70x = 198,004.05 × 72,807.90
  4. Step 4: Simplify right side
    132,002.70x = 14,416,259,072.00
  5. Step 5: Solve for x
    x = 14,416,259,072.00/132,002.70
  6. Step 6: Final answer
    x = 109,211.85

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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.