Home / 149,523.86-206,340.36-81,540.96

Finding the Fourth Proportional to 149,523.86, 206,340.36 and 81,540.96

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Solution

The fourth proportional to 149,523.86, 206,340.36 and 81,540.96 is: 112,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,523.86 : 206,340.36 = 81,540.96 : x
  2. Step 2: Convert to fraction form
    149,523.86/206,340.36 = 81,540.96/x
  3. Step 3: Cross multiply
    149,523.86x = 206,340.36 × 81,540.96
  4. Step 4: Simplify right side
    149,523.86x = 16,825,191,041.15
  5. Step 5: Solve for x
    x = 16,825,191,041.15/149,523.86
  6. Step 6: Final answer
    x = 112,525.13

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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.