Home / 132,429.40-198,720.90-49,331.80

Finding the Fourth Proportional to 132,429.40, 198,720.90 and 49,331.80

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Solution

The fourth proportional to 132,429.40, 198,720.90 and 49,331.80 is: 74,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,429.40 : 198,720.90 = 49,331.80 : x
  2. Step 2: Convert to fraction form
    132,429.40/198,720.90 = 49,331.80/x
  3. Step 3: Cross multiply
    132,429.40x = 198,720.90 × 49,331.80
  4. Step 4: Simplify right side
    132,429.40x = 9,803,259,694.62
  5. Step 5: Solve for x
    x = 9,803,259,694.62/132,429.40
  6. Step 6: Final answer
    x = 74,026.31

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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.