Home / 102,517.11-153,798.25-31,449.54

Finding the Fourth Proportional to 102,517.11, 153,798.25 and 31,449.54

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Solution

The fourth proportional to 102,517.11, 153,798.25 and 31,449.54 is: 47,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,517.11 : 153,798.25 = 31,449.54 : x
  2. Step 2: Convert to fraction form
    102,517.11/153,798.25 = 31,449.54/x
  3. Step 3: Cross multiply
    102,517.11x = 153,798.25 × 31,449.54
  4. Step 4: Simplify right side
    102,517.11x = 4,836,884,215.31
  5. Step 5: Solve for x
    x = 4,836,884,215.31/102,517.11
  6. Step 6: Final answer
    x = 47,181.24

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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.