Home / 132,420.50-198,568.32-48,121.38

Finding the Fourth Proportional to 132,420.50, 198,568.32 and 48,121.38

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Solution

The fourth proportional to 132,420.50, 198,568.32 and 48,121.38 is: 72,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,420.50 : 198,568.32 = 48,121.38 : x
  2. Step 2: Convert to fraction form
    132,420.50/198,568.32 = 48,121.38/x
  3. Step 3: Cross multiply
    132,420.50x = 198,568.32 × 48,121.38
  4. Step 4: Simplify right side
    132,420.50x = 9,555,381,582.68
  5. Step 5: Solve for x
    x = 9,555,381,582.68/132,420.50
  6. Step 6: Final answer
    x = 72,159.38

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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.