Home / 115,839.45-159,876.59-83,996.73

Finding the Fourth Proportional to 115,839.45, 159,876.59 and 83,996.73

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Solution

The fourth proportional to 115,839.45, 159,876.59 and 83,996.73 is: 115,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,839.45 : 159,876.59 = 83,996.73 : x
  2. Step 2: Convert to fraction form
    115,839.45/159,876.59 = 83,996.73/x
  3. Step 3: Cross multiply
    115,839.45x = 159,876.59 × 83,996.73
  4. Step 4: Simplify right side
    115,839.45x = 13,429,110,343.57
  5. Step 5: Solve for x
    x = 13,429,110,343.57/115,839.45
  6. Step 6: Final answer
    x = 115,928.64

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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.