Home / 115,066.80-158,775.66-67,311.12

Finding the Fourth Proportional to 115,066.80, 158,775.66 and 67,311.12

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Solution

The fourth proportional to 115,066.80, 158,775.66 and 67,311.12 is: 92,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.80 : 158,775.66 = 67,311.12 : x
  2. Step 2: Convert to fraction form
    115,066.80/158,775.66 = 67,311.12/x
  3. Step 3: Cross multiply
    115,066.80x = 158,775.66 × 67,311.12
  4. Step 4: Simplify right side
    115,066.80x = 10,687,367,503.34
  5. Step 5: Solve for x
    x = 10,687,367,503.34/115,066.80
  6. Step 6: Final answer
    x = 92,879.68

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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.