Home / 129,486.32-194,182.50-45,222.88

Finding the Fourth Proportional to 129,486.32, 194,182.50 and 45,222.88

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Solution

The fourth proportional to 129,486.32, 194,182.50 and 45,222.88 is: 67,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,486.32 : 194,182.50 = 45,222.88 : x
  2. Step 2: Convert to fraction form
    129,486.32/194,182.50 = 45,222.88/x
  3. Step 3: Cross multiply
    129,486.32x = 194,182.50 × 45,222.88
  4. Step 4: Simplify right side
    129,486.32x = 8,781,491,895.60
  5. Step 5: Solve for x
    x = 8,781,491,895.60/129,486.32
  6. Step 6: Final answer
    x = 67,817.91

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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.