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Finding the Fourth Proportional to 115,236.31, 172,854.42 and 36,356.71

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Solution

The fourth proportional to 115,236.31, 172,854.42 and 36,356.71 is: 54,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,236.31 : 172,854.42 = 36,356.71 : x
  2. Step 2: Convert to fraction form
    115,236.31/172,854.42 = 36,356.71/x
  3. Step 3: Cross multiply
    115,236.31x = 172,854.42 × 36,356.71
  4. Step 4: Simplify right side
    115,236.31x = 6,284,418,020.16
  5. Step 5: Solve for x
    x = 6,284,418,020.16/115,236.31
  6. Step 6: Final answer
    x = 54,535.05

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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.