Home / 104,445.72-156,471.24-80,957.16

Finding the Fourth Proportional to 104,445.72, 156,471.24 and 80,957.16

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Solution

The fourth proportional to 104,445.72, 156,471.24 and 80,957.16 is: 121,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,445.72 : 156,471.24 = 80,957.16 : x
  2. Step 2: Convert to fraction form
    104,445.72/156,471.24 = 80,957.16/x
  3. Step 3: Cross multiply
    104,445.72x = 156,471.24 × 80,957.16
  4. Step 4: Simplify right side
    104,445.72x = 12,667,467,212.08
  5. Step 5: Solve for x
    x = 12,667,467,212.08/104,445.72
  6. Step 6: Final answer
    x = 121,282.78

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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.