Home / 168,079.64-231,876.42-120,315.56

Finding the Fourth Proportional to 168,079.64, 231,876.42 and 120,315.56

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Solution

The fourth proportional to 168,079.64, 231,876.42 and 120,315.56 is: 165,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,079.64 : 231,876.42 = 120,315.56 : x
  2. Step 2: Convert to fraction form
    168,079.64/231,876.42 = 120,315.56/x
  3. Step 3: Cross multiply
    168,079.64x = 231,876.42 × 120,315.56
  4. Step 4: Simplify right side
    168,079.64x = 27,898,341,323.10
  5. Step 5: Solve for x
    x = 27,898,341,323.10/168,079.64
  6. Step 6: Final answer
    x = 165,982.87

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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.