Home / 254,104.04-381,191.25-85,672.58

Finding the Fourth Proportional to 254,104.04, 381,191.25 and 85,672.58

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Solution

The fourth proportional to 254,104.04, 381,191.25 and 85,672.58 is: 128,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,104.04 : 381,191.25 = 85,672.58 : x
  2. Step 2: Convert to fraction form
    254,104.04/381,191.25 = 85,672.58/x
  3. Step 3: Cross multiply
    254,104.04x = 381,191.25 × 85,672.58
  4. Step 4: Simplify right side
    254,104.04x = 32,657,635,954.97
  5. Step 5: Solve for x
    x = 32,657,635,954.97/254,104.04
  6. Step 6: Final answer
    x = 128,520.73

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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.