Home / 129,815.42-194,889.20-110,218.49

Finding the Fourth Proportional to 129,815.42, 194,889.20 and 110,218.49

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Solution

The fourth proportional to 129,815.42, 194,889.20 and 110,218.49 is: 165,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,815.42 : 194,889.20 = 110,218.49 : x
  2. Step 2: Convert to fraction form
    129,815.42/194,889.20 = 110,218.49/x
  3. Step 3: Cross multiply
    129,815.42x = 194,889.20 × 110,218.49
  4. Step 4: Simplify right side
    129,815.42x = 21,480,392,642.41
  5. Step 5: Solve for x
    x = 21,480,392,642.41/129,815.42
  6. Step 6: Final answer
    x = 165,468.74

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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.