Home / 158,383.24-218,568.95-86,763.54

Finding the Fourth Proportional to 158,383.24, 218,568.95 and 86,763.54

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Solution

The fourth proportional to 158,383.24, 218,568.95 and 86,763.54 is: 119,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,383.24 : 218,568.95 = 86,763.54 : x
  2. Step 2: Convert to fraction form
    158,383.24/218,568.95 = 86,763.54/x
  3. Step 3: Cross multiply
    158,383.24x = 218,568.95 × 86,763.54
  4. Step 4: Simplify right side
    158,383.24x = 18,963,815,836.08
  5. Step 5: Solve for x
    x = 18,963,815,836.08/158,383.24
  6. Step 6: Final answer
    x = 119,733.73

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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.