Home / 104,380.80-156,504.60-68,801.04

Finding the Fourth Proportional to 104,380.80, 156,504.60 and 68,801.04

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Solution

The fourth proportional to 104,380.80, 156,504.60 and 68,801.04 is: 103,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,380.80 : 156,504.60 = 68,801.04 : x
  2. Step 2: Convert to fraction form
    104,380.80/156,504.60 = 68,801.04/x
  3. Step 3: Cross multiply
    104,380.80x = 156,504.60 × 68,801.04
  4. Step 4: Simplify right side
    104,380.80x = 10,767,679,244.78
  5. Step 5: Solve for x
    x = 10,767,679,244.78/104,380.80
  6. Step 6: Final answer
    x = 103,157.66

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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.