Home / 158,388.26-218,575.74-86,768.18

Finding the Fourth Proportional to 158,388.26, 218,575.74 and 86,768.18

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Solution

The fourth proportional to 158,388.26, 218,575.74 and 86,768.18 is: 119,740.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,388.26 : 218,575.74 = 86,768.18 : x
  2. Step 2: Convert to fraction form
    158,388.26/218,575.74 = 86,768.18/x
  3. Step 3: Cross multiply
    158,388.26x = 218,575.74 × 86,768.18
  4. Step 4: Simplify right side
    158,388.26x = 18,965,419,151.95
  5. Step 5: Solve for x
    x = 18,965,419,151.95/158,388.26
  6. Step 6: Final answer
    x = 119,740.06

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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.