Home / 144,423.12-199,278.18-80,761.44

Finding the Fourth Proportional to 144,423.12, 199,278.18 and 80,761.44

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Solution

The fourth proportional to 144,423.12, 199,278.18 and 80,761.44 is: 111,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,423.12 : 199,278.18 = 80,761.44 : x
  2. Step 2: Convert to fraction form
    144,423.12/199,278.18 = 80,761.44/x
  3. Step 3: Cross multiply
    144,423.12x = 199,278.18 × 80,761.44
  4. Step 4: Simplify right side
    144,423.12x = 16,093,992,777.38
  5. Step 5: Solve for x
    x = 16,093,992,777.38/144,423.12
  6. Step 6: Final answer
    x = 111,436.40

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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.