Home / 156,976.40-216,622.92-88,999.76

Finding the Fourth Proportional to 156,976.40, 216,622.92 and 88,999.76

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Solution

The fourth proportional to 156,976.40, 216,622.92 and 88,999.76 is: 122,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.40 : 216,622.92 = 88,999.76 : x
  2. Step 2: Convert to fraction form
    156,976.40/216,622.92 = 88,999.76/x
  3. Step 3: Cross multiply
    156,976.40x = 216,622.92 × 88,999.76
  4. Step 4: Simplify right side
    156,976.40x = 19,279,387,890.50
  5. Step 5: Solve for x
    x = 19,279,387,890.50/156,976.40
  6. Step 6: Final answer
    x = 122,817.11

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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.