Home / 139,549.20-209,323.80-132,332.10

Finding the Fourth Proportional to 139,549.20, 209,323.80 and 132,332.10

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Solution

The fourth proportional to 139,549.20, 209,323.80 and 132,332.10 is: 198,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,549.20 : 209,323.80 = 132,332.10 : x
  2. Step 2: Convert to fraction form
    139,549.20/209,323.80 = 132,332.10/x
  3. Step 3: Cross multiply
    139,549.20x = 209,323.80 × 132,332.10
  4. Step 4: Simplify right side
    139,549.20x = 27,700,258,033.98
  5. Step 5: Solve for x
    x = 27,700,258,033.98/139,549.20
  6. Step 6: Final answer
    x = 198,498.15

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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.