Home / 129,934.22-179,297.54-72,565.56

Finding the Fourth Proportional to 129,934.22, 179,297.54 and 72,565.56

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Solution

The fourth proportional to 129,934.22, 179,297.54 and 72,565.56 is: 100,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,934.22 : 179,297.54 = 72,565.56 : x
  2. Step 2: Convert to fraction form
    129,934.22/179,297.54 = 72,565.56/x
  3. Step 3: Cross multiply
    129,934.22x = 179,297.54 × 72,565.56
  4. Step 4: Simplify right side
    129,934.22x = 13,010,826,396.72
  5. Step 5: Solve for x
    x = 13,010,826,396.72/129,934.22
  6. Step 6: Final answer
    x = 100,133.95

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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.