Home / 113,223.48-156,408.30-90,711.96

Finding the Fourth Proportional to 113,223.48, 156,408.30 and 90,711.96

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Solution

The fourth proportional to 113,223.48, 156,408.30 and 90,711.96 is: 125,310.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,223.48 : 156,408.30 = 90,711.96 : x
  2. Step 2: Convert to fraction form
    113,223.48/156,408.30 = 90,711.96/x
  3. Step 3: Cross multiply
    113,223.48x = 156,408.30 × 90,711.96
  4. Step 4: Simplify right side
    113,223.48x = 14,188,103,453.27
  5. Step 5: Solve for x
    x = 14,188,103,453.27/113,223.48
  6. Step 6: Final answer
    x = 125,310.61

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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.