Home / 158,536.52-218,780.38-86,917.04

Finding the Fourth Proportional to 158,536.52, 218,780.38 and 86,917.04

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Solution

The fourth proportional to 158,536.52, 218,780.38 and 86,917.04 is: 119,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,536.52 : 218,780.38 = 86,917.04 : x
  2. Step 2: Convert to fraction form
    158,536.52/218,780.38 = 86,917.04/x
  3. Step 3: Cross multiply
    158,536.52x = 218,780.38 × 86,917.04
  4. Step 4: Simplify right side
    158,536.52x = 19,015,743,039.68
  5. Step 5: Solve for x
    x = 19,015,743,039.68/158,536.52
  6. Step 6: Final answer
    x = 119,945.51

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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.