Home / 156,310.20-215,716.50-88,329.96

Finding the Fourth Proportional to 156,310.20, 215,716.50 and 88,329.96

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Solution

The fourth proportional to 156,310.20, 215,716.50 and 88,329.96 is: 121,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,310.20 : 215,716.50 = 88,329.96 : x
  2. Step 2: Convert to fraction form
    156,310.20/215,716.50 = 88,329.96/x
  3. Step 3: Cross multiply
    156,310.20x = 215,716.50 × 88,329.96
  4. Step 4: Simplify right side
    156,310.20x = 19,054,229,816.34
  5. Step 5: Solve for x
    x = 19,054,229,816.34/156,310.20
  6. Step 6: Final answer
    x = 121,900.11

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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.