Home / 139,557.20-209,335.80-132,340.10

Finding the Fourth Proportional to 139,557.20, 209,335.80 and 132,340.10

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Solution

The fourth proportional to 139,557.20, 209,335.80 and 132,340.10 is: 198,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,557.20 : 209,335.80 = 132,340.10 : x
  2. Step 2: Convert to fraction form
    139,557.20/209,335.80 = 132,340.10/x
  3. Step 3: Cross multiply
    139,557.20x = 209,335.80 × 132,340.10
  4. Step 4: Simplify right side
    139,557.20x = 27,703,520,705.58
  5. Step 5: Solve for x
    x = 27,703,520,705.58/139,557.20
  6. Step 6: Final answer
    x = 198,510.15

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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.