Home / 149,739.26-206,565.60-89,267.30

Finding the Fourth Proportional to 149,739.26, 206,565.60 and 89,267.30

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Solution

The fourth proportional to 149,739.26, 206,565.60 and 89,267.30 is: 123,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,739.26 : 206,565.60 = 89,267.30 : x
  2. Step 2: Convert to fraction form
    149,739.26/206,565.60 = 89,267.30/x
  3. Step 3: Cross multiply
    149,739.26x = 206,565.60 × 89,267.30
  4. Step 4: Simplify right side
    149,739.26x = 18,439,552,352.05
  5. Step 5: Solve for x
    x = 18,439,552,352.05/149,739.26
  6. Step 6: Final answer
    x = 123,144.41

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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.