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Finding the Fourth Proportional to 143,833.56, 215,600.62 and 80,560.92

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Solution

The fourth proportional to 143,833.56, 215,600.62 and 80,560.92 is: 120,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,833.56 : 215,600.62 = 80,560.92 : x
  2. Step 2: Convert to fraction form
    143,833.56/215,600.62 = 80,560.92/x
  3. Step 3: Cross multiply
    143,833.56x = 215,600.62 × 80,560.92
  4. Step 4: Simplify right side
    143,833.56x = 17,368,984,299.77
  5. Step 5: Solve for x
    x = 17,368,984,299.77/143,833.56
  6. Step 6: Final answer
    x = 120,757.52

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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.