Home / 132,853.80-199,280.70-80,236.20

Finding the Fourth Proportional to 132,853.80, 199,280.70 and 80,236.20

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Solution

The fourth proportional to 132,853.80, 199,280.70 and 80,236.20 is: 120,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,853.80 : 199,280.70 = 80,236.20 : x
  2. Step 2: Convert to fraction form
    132,853.80/199,280.70 = 80,236.20/x
  3. Step 3: Cross multiply
    132,853.80x = 199,280.70 × 80,236.20
  4. Step 4: Simplify right side
    132,853.80x = 15,989,526,101.34
  5. Step 5: Solve for x
    x = 15,989,526,101.34/132,853.80
  6. Step 6: Final answer
    x = 120,354.30

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1.5x scale

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.