Home / 132,021.20-198,031.80-43,253.30

Finding the Fourth Proportional to 132,021.20, 198,031.80 and 43,253.30

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Solution

The fourth proportional to 132,021.20, 198,031.80 and 43,253.30 is: 64,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,021.20 : 198,031.80 = 43,253.30 : x
  2. Step 2: Convert to fraction form
    132,021.20/198,031.80 = 43,253.30/x
  3. Step 3: Cross multiply
    132,021.20x = 198,031.80 × 43,253.30
  4. Step 4: Simplify right side
    132,021.20x = 8,565,528,854.94
  5. Step 5: Solve for x
    x = 8,565,528,854.94/132,021.20
  6. Step 6: Final answer
    x = 64,879.95

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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.