Home / 149,418.76-206,191.88-81,434.27

Finding the Fourth Proportional to 149,418.76, 206,191.88 and 81,434.27

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Solution

The fourth proportional to 149,418.76, 206,191.88 and 81,434.27 is: 112,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,418.76 : 206,191.88 = 81,434.27 : x
  2. Step 2: Convert to fraction form
    149,418.76/206,191.88 = 81,434.27/x
  3. Step 3: Cross multiply
    149,418.76x = 206,191.88 × 81,434.27
  4. Step 4: Simplify right side
    149,418.76x = 16,791,085,227.73
  5. Step 5: Solve for x
    x = 16,791,085,227.73/149,418.76
  6. Step 6: Final answer
    x = 112,376.02

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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.