Home / 104,721.13-156,972.33-45,540.91

Finding the Fourth Proportional to 104,721.13, 156,972.33 and 45,540.91

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Solution

The fourth proportional to 104,721.13, 156,972.33 and 45,540.91 is: 68,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,721.13 : 156,972.33 = 45,540.91 : x
  2. Step 2: Convert to fraction form
    104,721.13/156,972.33 = 45,540.91/x
  3. Step 3: Cross multiply
    104,721.13x = 156,972.33 × 45,540.91
  4. Step 4: Simplify right side
    104,721.13x = 7,148,662,753.02
  5. Step 5: Solve for x
    x = 7,148,662,753.02/104,721.13
  6. Step 6: Final answer
    x = 68,263.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.