Home / 156,944.86-216,588.18-85,329.70

Finding the Fourth Proportional to 156,944.86, 216,588.18 and 85,329.70

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Solution

The fourth proportional to 156,944.86, 216,588.18 and 85,329.70 is: 117,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,944.86 : 216,588.18 = 85,329.70 : x
  2. Step 2: Convert to fraction form
    156,944.86/216,588.18 = 85,329.70/x
  3. Step 3: Cross multiply
    156,944.86x = 216,588.18 × 85,329.70
  4. Step 4: Simplify right side
    156,944.86x = 18,481,404,422.95
  5. Step 5: Solve for x
    x = 18,481,404,422.95/156,944.86
  6. Step 6: Final answer
    x = 117,757.31

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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.