Home / 112,132.15-168,198.23-76,965.19

Finding the Fourth Proportional to 112,132.15, 168,198.23 and 76,965.19

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Solution

The fourth proportional to 112,132.15, 168,198.23 and 76,965.19 is: 115,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,132.15 : 168,198.23 = 76,965.19 : x
  2. Step 2: Convert to fraction form
    112,132.15/168,198.23 = 76,965.19/x
  3. Step 3: Cross multiply
    112,132.15x = 168,198.23 × 76,965.19
  4. Step 4: Simplify right side
    112,132.15x = 12,945,408,729.61
  5. Step 5: Solve for x
    x = 12,945,408,729.61/112,132.15
  6. Step 6: Final answer
    x = 115,447.79

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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.