Home / 144,122.20-198,888.13-80,459.44

Finding the Fourth Proportional to 144,122.20, 198,888.13 and 80,459.44

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Solution

The fourth proportional to 144,122.20, 198,888.13 and 80,459.44 is: 111,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,122.20 : 198,888.13 = 80,459.44 : x
  2. Step 2: Convert to fraction form
    144,122.20/198,888.13 = 80,459.44/x
  3. Step 3: Cross multiply
    144,122.20x = 198,888.13 × 80,459.44
  4. Step 4: Simplify right side
    144,122.20x = 16,002,427,562.45
  5. Step 5: Solve for x
    x = 16,002,427,562.45/144,122.20
  6. Step 6: Final answer
    x = 111,033.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.