Home / 129,551.70-194,383.98-45,372.30

Finding the Fourth Proportional to 129,551.70, 194,383.98 and 45,372.30

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Solution

The fourth proportional to 129,551.70, 194,383.98 and 45,372.30 is: 68,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,551.70 : 194,383.98 = 45,372.30 : x
  2. Step 2: Convert to fraction form
    129,551.70/194,383.98 = 45,372.30/x
  3. Step 3: Cross multiply
    129,551.70x = 194,383.98 × 45,372.30
  4. Step 4: Simplify right side
    129,551.70x = 8,819,648,255.75
  5. Step 5: Solve for x
    x = 8,819,648,255.75/129,551.70
  6. Step 6: Final answer
    x = 68,078.21

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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.