Home / 90,198.24-124,391.34-77,447.43

Finding the Fourth Proportional to 90,198.24, 124,391.34 and 77,447.43

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Solution

The fourth proportional to 90,198.24, 124,391.34 and 77,447.43 is: 106,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,198.24 : 124,391.34 = 77,447.43 : x
  2. Step 2: Convert to fraction form
    90,198.24/124,391.34 = 77,447.43/x
  3. Step 3: Cross multiply
    90,198.24x = 124,391.34 × 77,447.43
  4. Step 4: Simplify right side
    90,198.24x = 9,633,789,597.26
  5. Step 5: Solve for x
    x = 9,633,789,597.26/90,198.24
  6. Step 6: Final answer
    x = 106,806.85

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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.