Home / 129,944.65-179,321.67-72,584.77

Finding the Fourth Proportional to 129,944.65, 179,321.67 and 72,584.77

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Solution

The fourth proportional to 129,944.65, 179,321.67 and 72,584.77 is: 100,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,944.65 : 179,321.67 = 72,584.77 : x
  2. Step 2: Convert to fraction form
    129,944.65/179,321.67 = 72,584.77/x
  3. Step 3: Cross multiply
    129,944.65x = 179,321.67 × 72,584.77
  4. Step 4: Simplify right side
    129,944.65x = 13,016,022,172.97
  5. Step 5: Solve for x
    x = 13,016,022,172.97/129,944.65
  6. Step 6: Final answer
    x = 100,165.90

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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.