Home / 156,949.13-216,588.73-85,329.15

Finding the Fourth Proportional to 156,949.13, 216,588.73 and 85,329.15

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Solution

The fourth proportional to 156,949.13, 216,588.73 and 85,329.15 is: 117,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,949.13 : 216,588.73 = 85,329.15 : x
  2. Step 2: Convert to fraction form
    156,949.13/216,588.73 = 85,329.15/x
  3. Step 3: Cross multiply
    156,949.13x = 216,588.73 × 85,329.15
  4. Step 4: Simplify right side
    156,949.13x = 18,481,332,230.48
  5. Step 5: Solve for x
    x = 18,481,332,230.48/156,949.13
  6. Step 6: Final answer
    x = 117,753.65

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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.