Home / 132,354.20-198,531.30-73,159.40

Finding the Fourth Proportional to 132,354.20, 198,531.30 and 73,159.40

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Solution

The fourth proportional to 132,354.20, 198,531.30 and 73,159.40 is: 109,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,354.20 : 198,531.30 = 73,159.40 : x
  2. Step 2: Convert to fraction form
    132,354.20/198,531.30 = 73,159.40/x
  3. Step 3: Cross multiply
    132,354.20x = 198,531.30 × 73,159.40
  4. Step 4: Simplify right side
    132,354.20x = 14,524,430,789.22
  5. Step 5: Solve for x
    x = 14,524,430,789.22/132,354.20
  6. Step 6: Final answer
    x = 109,739.10

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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.