Home / 84,198.08-126,309.48-30,158.66

Finding the Fourth Proportional to 84,198.08, 126,309.48 and 30,158.66

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Solution

The fourth proportional to 84,198.08, 126,309.48 and 30,158.66 is: 45,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,198.08 : 126,309.48 = 30,158.66 : x
  2. Step 2: Convert to fraction form
    84,198.08/126,309.48 = 30,158.66/x
  3. Step 3: Cross multiply
    84,198.08x = 126,309.48 × 30,158.66
  4. Step 4: Simplify right side
    84,198.08x = 3,809,324,864.78
  5. Step 5: Solve for x
    x = 3,809,324,864.78/84,198.08
  6. Step 6: Final answer
    x = 45,242.42

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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.