Home / 129,863.40-179,211.24-73,274.64

Finding the Fourth Proportional to 129,863.40, 179,211.24 and 73,274.64

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Solution

The fourth proportional to 129,863.40, 179,211.24 and 73,274.64 is: 101,118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,863.40 : 179,211.24 = 73,274.64 : x
  2. Step 2: Convert to fraction form
    129,863.40/179,211.24 = 73,274.64/x
  3. Step 3: Cross multiply
    129,863.40x = 179,211.24 × 73,274.64
  4. Step 4: Simplify right side
    129,863.40x = 13,131,639,094.95
  5. Step 5: Solve for x
    x = 13,131,639,094.95/129,863.40
  6. Step 6: Final answer
    x = 101,118.86

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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.