Home / 149,523.18-206,344.71-81,540.96

Finding the Fourth Proportional to 149,523.18, 206,344.71 and 81,540.96

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Solution

The fourth proportional to 149,523.18, 206,344.71 and 81,540.96 is: 112,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,523.18 : 206,344.71 = 81,540.96 : x
  2. Step 2: Convert to fraction form
    149,523.18/206,344.71 = 81,540.96/x
  3. Step 3: Cross multiply
    149,523.18x = 206,344.71 × 81,540.96
  4. Step 4: Simplify right side
    149,523.18x = 16,825,545,744.32
  5. Step 5: Solve for x
    x = 16,825,545,744.32/149,523.18
  6. Step 6: Final answer
    x = 112,528.01

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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.