Home / 185,709.92-256,272.56-100,825.12

Finding the Fourth Proportional to 185,709.92, 256,272.56 and 100,825.12

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Solution

The fourth proportional to 185,709.92, 256,272.56 and 100,825.12 is: 139,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,709.92 : 256,272.56 = 100,825.12 : x
  2. Step 2: Convert to fraction form
    185,709.92/256,272.56 = 100,825.12/x
  3. Step 3: Cross multiply
    185,709.92x = 256,272.56 × 100,825.12
  4. Step 4: Simplify right side
    185,709.92x = 25,838,711,614.71
  5. Step 5: Solve for x
    x = 25,838,711,614.71/185,709.92
  6. Step 6: Final answer
    x = 139,134.79

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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.