Home / 129,866.68-194,811.12-45,619.52

Finding the Fourth Proportional to 129,866.68, 194,811.12 and 45,619.52

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Solution

The fourth proportional to 129,866.68, 194,811.12 and 45,619.52 is: 68,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,866.68 : 194,811.12 = 45,619.52 : x
  2. Step 2: Convert to fraction form
    129,866.68/194,811.12 = 45,619.52/x
  3. Step 3: Cross multiply
    129,866.68x = 194,811.12 × 45,619.52
  4. Step 4: Simplify right side
    129,866.68x = 8,887,189,785.06
  5. Step 5: Solve for x
    x = 8,887,189,785.06/129,866.68
  6. Step 6: Final answer
    x = 68,433.18

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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.