Home / 149,402.34-206,175.26-81,419.33

Finding the Fourth Proportional to 149,402.34, 206,175.26 and 81,419.33

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Solution

The fourth proportional to 149,402.34, 206,175.26 and 81,419.33 is: 112,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,402.34 : 206,175.26 = 81,419.33 : x
  2. Step 2: Convert to fraction form
    149,402.34/206,175.26 = 81,419.33/x
  3. Step 3: Cross multiply
    149,402.34x = 206,175.26 × 81,419.33
  4. Step 4: Simplify right side
    149,402.34x = 16,786,650,093.80
  5. Step 5: Solve for x
    x = 16,786,650,093.80/149,402.34
  6. Step 6: Final answer
    x = 112,358.68

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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.