Home / 132,042.04-198,188.82-81,970.60

Finding the Fourth Proportional to 132,042.04, 198,188.82 and 81,970.60

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Solution

The fourth proportional to 132,042.04, 198,188.82 and 81,970.60 is: 123,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,042.04 : 198,188.82 = 81,970.60 : x
  2. Step 2: Convert to fraction form
    132,042.04/198,188.82 = 81,970.60/x
  3. Step 3: Cross multiply
    132,042.04x = 198,188.82 × 81,970.60
  4. Step 4: Simplify right side
    132,042.04x = 16,245,656,488.69
  5. Step 5: Solve for x
    x = 16,245,656,488.69/132,042.04
  6. Step 6: Final answer
    x = 123,033.97

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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.