Home / 141,103.30-194,722-76,572.80

Finding the Fourth Proportional to 141,103.30, 194,722 and 76,572.80

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Solution

The fourth proportional to 141,103.30, 194,722 and 76,572.80 is: 105,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,103.30 : 194,722 = 76,572.80 : x
  2. Step 2: Convert to fraction form
    141,103.30/194,722 = 76,572.80/x
  3. Step 3: Cross multiply
    141,103.30x = 194,722 × 76,572.80
  4. Step 4: Simplify right side
    141,103.30x = 14,910,408,761.60
  5. Step 5: Solve for x
    x = 14,910,408,761.60/141,103.30
  6. Step 6: Final answer
    x = 105,670.16

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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.