Home / 129,743.25-194,702.22-45,504.20

Finding the Fourth Proportional to 129,743.25, 194,702.22 and 45,504.20

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Solution

The fourth proportional to 129,743.25, 194,702.22 and 45,504.20 is: 68,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.25 : 194,702.22 = 45,504.20 : x
  2. Step 2: Convert to fraction form
    129,743.25/194,702.22 = 45,504.20/x
  3. Step 3: Cross multiply
    129,743.25x = 194,702.22 × 45,504.20
  4. Step 4: Simplify right side
    129,743.25x = 8,859,767,785.81
  5. Step 5: Solve for x
    x = 8,859,767,785.81/129,743.25
  6. Step 6: Final answer
    x = 68,286.93

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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.