Home / 156,217.46-215,578.41-88,234.57

Finding the Fourth Proportional to 156,217.46, 215,578.41 and 88,234.57

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Solution

The fourth proportional to 156,217.46, 215,578.41 and 88,234.57 is: 121,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.46 : 215,578.41 = 88,234.57 : x
  2. Step 2: Convert to fraction form
    156,217.46/215,578.41 = 88,234.57/x
  3. Step 3: Cross multiply
    156,217.46x = 215,578.41 × 88,234.57
  4. Step 4: Simplify right side
    156,217.46x = 19,021,467,229.74
  5. Step 5: Solve for x
    x = 19,021,467,229.74/156,217.46
  6. Step 6: Final answer
    x = 121,762.75

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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.