Home / 115,234.24-159,016.62-64,245.28

Finding the Fourth Proportional to 115,234.24, 159,016.62 and 64,245.28

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Solution

The fourth proportional to 115,234.24, 159,016.62 and 64,245.28 is: 88,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,234.24 : 159,016.62 = 64,245.28 : x
  2. Step 2: Convert to fraction form
    115,234.24/159,016.62 = 64,245.28/x
  3. Step 3: Cross multiply
    115,234.24x = 159,016.62 × 64,245.28
  4. Step 4: Simplify right side
    115,234.24x = 10,216,067,276.55
  5. Step 5: Solve for x
    x = 10,216,067,276.55/115,234.24
  6. Step 6: Final answer
    x = 88,654.79

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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.