Home / 144,280.38-199,103.21-80,618.70

Finding the Fourth Proportional to 144,280.38, 199,103.21 and 80,618.70

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Solution

The fourth proportional to 144,280.38, 199,103.21 and 80,618.70 is: 111,251.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,280.38 : 199,103.21 = 80,618.70 : x
  2. Step 2: Convert to fraction form
    144,280.38/199,103.21 = 80,618.70/x
  3. Step 3: Cross multiply
    144,280.38x = 199,103.21 × 80,618.70
  4. Step 4: Simplify right side
    144,280.38x = 16,051,440,557.42
  5. Step 5: Solve for x
    x = 16,051,440,557.42/144,280.38
  6. Step 6: Final answer
    x = 111,251.72

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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.