Home / 149,519.52-206,341.92-81,540.22

Finding the Fourth Proportional to 149,519.52, 206,341.92 and 81,540.22

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Solution

The fourth proportional to 149,519.52, 206,341.92 and 81,540.22 is: 112,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,519.52 : 206,341.92 = 81,540.22 : x
  2. Step 2: Convert to fraction form
    149,519.52/206,341.92 = 81,540.22/x
  3. Step 3: Cross multiply
    149,519.52x = 206,341.92 × 81,540.22
  4. Step 4: Simplify right side
    149,519.52x = 16,825,165,552.02
  5. Step 5: Solve for x
    x = 16,825,165,552.02/149,519.52
  6. Step 6: Final answer
    x = 112,528.22

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1.5x scale

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.