Home / 205,057.35-282,945.20-136,965.11

Finding the Fourth Proportional to 205,057.35, 282,945.20 and 136,965.11

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Solution

The fourth proportional to 205,057.35, 282,945.20 and 136,965.11 is: 188,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,057.35 : 282,945.20 = 136,965.11 : x
  2. Step 2: Convert to fraction form
    205,057.35/282,945.20 = 136,965.11/x
  3. Step 3: Cross multiply
    205,057.35x = 282,945.20 × 136,965.11
  4. Step 4: Simplify right side
    205,057.35x = 38,753,618,342.42
  5. Step 5: Solve for x
    x = 38,753,618,342.42/205,057.35
  6. Step 6: Final answer
    x = 188,989.17

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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.