Home / 139,548.20-209,322.30-132,331.10

Finding the Fourth Proportional to 139,548.20, 209,322.30 and 132,331.10

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Solution

The fourth proportional to 139,548.20, 209,322.30 and 132,331.10 is: 198,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,548.20 : 209,322.30 = 132,331.10 : x
  2. Step 2: Convert to fraction form
    139,548.20/209,322.30 = 132,331.10/x
  3. Step 3: Cross multiply
    139,548.20x = 209,322.30 × 132,331.10
  4. Step 4: Simplify right side
    139,548.20x = 27,699,850,213.53
  5. Step 5: Solve for x
    x = 27,699,850,213.53/139,548.20
  6. Step 6: Final answer
    x = 198,496.65

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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.