Home / 149,229.12-205,939.80-91,847.04

Finding the Fourth Proportional to 149,229.12, 205,939.80 and 91,847.04

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Solution

The fourth proportional to 149,229.12, 205,939.80 and 91,847.04 is: 126,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,229.12 : 205,939.80 = 91,847.04 : x
  2. Step 2: Convert to fraction form
    149,229.12/205,939.80 = 91,847.04/x
  3. Step 3: Cross multiply
    149,229.12x = 205,939.80 × 91,847.04
  4. Step 4: Simplify right side
    149,229.12x = 18,914,961,048.19
  5. Step 5: Solve for x
    x = 18,914,961,048.19/149,229.12
  6. Step 6: Final answer
    x = 126,751.14

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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.