Home / 254,233.62-381,084.29-85,695.66

Finding the Fourth Proportional to 254,233.62, 381,084.29 and 85,695.66

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Solution

The fourth proportional to 254,233.62, 381,084.29 and 85,695.66 is: 128,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,233.62 : 381,084.29 = 85,695.66 : x
  2. Step 2: Convert to fraction form
    254,233.62/381,084.29 = 85,695.66/x
  3. Step 3: Cross multiply
    254,233.62x = 381,084.29 × 85,695.66
  4. Step 4: Simplify right side
    254,233.62x = 32,657,269,586.20
  5. Step 5: Solve for x
    x = 32,657,269,586.20/254,233.62
  6. Step 6: Final answer
    x = 128,453.78

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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.