Home / 115,121.12-158,825-69,766.38

Finding the Fourth Proportional to 115,121.12, 158,825 and 69,766.38

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Solution

The fourth proportional to 115,121.12, 158,825 and 69,766.38 is: 96,252.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,121.12 : 158,825 = 69,766.38 : x
  2. Step 2: Convert to fraction form
    115,121.12/158,825 = 69,766.38/x
  3. Step 3: Cross multiply
    115,121.12x = 158,825 × 69,766.38
  4. Step 4: Simplify right side
    115,121.12x = 11,080,645,303.50
  5. Step 5: Solve for x
    x = 11,080,645,303.50/115,121.12
  6. Step 6: Final answer
    x = 96,252.06

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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.