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Finding the Fourth Proportional to 185,158.69, 255,518.43 and 100,275.73

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Solution

The fourth proportional to 185,158.69, 255,518.43 and 100,275.73 is: 138,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,158.69 : 255,518.43 = 100,275.73 : x
  2. Step 2: Convert to fraction form
    185,158.69/255,518.43 = 100,275.73/x
  3. Step 3: Cross multiply
    185,158.69x = 255,518.43 × 100,275.73
  4. Step 4: Simplify right side
    185,158.69x = 25,622,297,096.70
  5. Step 5: Solve for x
    x = 25,622,297,096.70/185,158.69
  6. Step 6: Final answer
    x = 138,380.20

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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.