Home / 156,799.54-216,385.68-85,180.96

Finding the Fourth Proportional to 156,799.54, 216,385.68 and 85,180.96

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Solution

The fourth proportional to 156,799.54, 216,385.68 and 85,180.96 is: 117,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.54 : 216,385.68 = 85,180.96 : x
  2. Step 2: Convert to fraction form
    156,799.54/216,385.68 = 85,180.96/x
  3. Step 3: Cross multiply
    156,799.54x = 216,385.68 × 85,180.96
  4. Step 4: Simplify right side
    156,799.54x = 18,431,939,952.65
  5. Step 5: Solve for x
    x = 18,431,939,952.65/156,799.54
  6. Step 6: Final answer
    x = 117,550.98

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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.