Home / 185,695.76-256,263.12-100,812.75

Finding the Fourth Proportional to 185,695.76, 256,263.12 and 100,812.75

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Solution

The fourth proportional to 185,695.76, 256,263.12 and 100,812.75 is: 139,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,695.76 : 256,263.12 = 100,812.75 : x
  2. Step 2: Convert to fraction form
    185,695.76/256,263.12 = 100,812.75/x
  3. Step 3: Cross multiply
    185,695.76x = 256,263.12 × 100,812.75
  4. Step 4: Simplify right side
    185,695.76x = 25,834,589,850.78
  5. Step 5: Solve for x
    x = 25,834,589,850.78/185,695.76
  6. Step 6: Final answer
    x = 139,123.21

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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.