Home / 185,789.32-256,380.69-105,217.43

Finding the Fourth Proportional to 185,789.32, 256,380.69 and 105,217.43

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Solution

The fourth proportional to 185,789.32, 256,380.69 and 105,217.43 is: 145,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,789.32 : 256,380.69 = 105,217.43 : x
  2. Step 2: Convert to fraction form
    185,789.32/256,380.69 = 105,217.43/x
  3. Step 3: Cross multiply
    185,789.32x = 256,380.69 × 105,217.43
  4. Step 4: Simplify right side
    185,789.32x = 26,975,715,626.96
  5. Step 5: Solve for x
    x = 26,975,715,626.96/185,789.32
  6. Step 6: Final answer
    x = 145,195.19

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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.