Home / 121,404.28-167,454.12-80,560.84

Finding the Fourth Proportional to 121,404.28, 167,454.12 and 80,560.84

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Solution

The fourth proportional to 121,404.28, 167,454.12 and 80,560.84 is: 111,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,404.28 : 167,454.12 = 80,560.84 : x
  2. Step 2: Convert to fraction form
    121,404.28/167,454.12 = 80,560.84/x
  3. Step 3: Cross multiply
    121,404.28x = 167,454.12 × 80,560.84
  4. Step 4: Simplify right side
    121,404.28x = 13,490,244,568.66
  5. Step 5: Solve for x
    x = 13,490,244,568.66/121,404.28
  6. Step 6: Final answer
    x = 111,118.36

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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.