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Finding the Fourth Proportional to 118,550.20, 177,825.30 and 85,502.20

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Solution

The fourth proportional to 118,550.20, 177,825.30 and 85,502.20 is: 128,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,550.20 : 177,825.30 = 85,502.20 : x
  2. Step 2: Convert to fraction form
    118,550.20/177,825.30 = 85,502.20/x
  3. Step 3: Cross multiply
    118,550.20x = 177,825.30 × 85,502.20
  4. Step 4: Simplify right side
    118,550.20x = 15,204,454,365.66
  5. Step 5: Solve for x
    x = 15,204,454,365.66/118,550.20
  6. Step 6: Final answer
    x = 128,253.30

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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.