Home / 72,450.38-108,147.84-67,108.04

Finding the Fourth Proportional to 72,450.38, 108,147.84 and 67,108.04

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Solution

The fourth proportional to 72,450.38, 108,147.84 and 67,108.04 is: 100,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,450.38 : 108,147.84 = 67,108.04 : x
  2. Step 2: Convert to fraction form
    72,450.38/108,147.84 = 67,108.04/x
  3. Step 3: Cross multiply
    72,450.38x = 108,147.84 × 67,108.04
  4. Step 4: Simplify right side
    72,450.38x = 7,257,589,572.63
  5. Step 5: Solve for x
    x = 7,257,589,572.63/72,450.38
  6. Step 6: Final answer
    x = 100,173.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.