Home / 120,435.80-166,229.04-80,151.24

Finding the Fourth Proportional to 120,435.80, 166,229.04 and 80,151.24

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Solution

The fourth proportional to 120,435.80, 166,229.04 and 80,151.24 is: 110,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,435.80 : 166,229.04 = 80,151.24 : x
  2. Step 2: Convert to fraction form
    120,435.80/166,229.04 = 80,151.24/x
  3. Step 3: Cross multiply
    120,435.80x = 166,229.04 × 80,151.24
  4. Step 4: Simplify right side
    120,435.80x = 13,323,463,680.01
  5. Step 5: Solve for x
    x = 13,323,463,680.01/120,435.80
  6. Step 6: Final answer
    x = 110,627.10

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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.