Home / 156,976.83-216,623.48-89,000.11

Finding the Fourth Proportional to 156,976.83, 216,623.48 and 89,000.11

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Solution

The fourth proportional to 156,976.83, 216,623.48 and 89,000.11 is: 122,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.83 : 216,623.48 = 89,000.11 : x
  2. Step 2: Convert to fraction form
    156,976.83/216,623.48 = 89,000.11/x
  3. Step 3: Cross multiply
    156,976.83x = 216,623.48 × 89,000.11
  4. Step 4: Simplify right side
    156,976.83x = 19,279,513,229.52
  5. Step 5: Solve for x
    x = 19,279,513,229.52/156,976.83
  6. Step 6: Final answer
    x = 122,817.57

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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.