Home / 158,546.09-218,793.29-86,930.75

Finding the Fourth Proportional to 158,546.09, 218,793.29 and 86,930.75

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Solution

The fourth proportional to 158,546.09, 218,793.29 and 86,930.75 is: 119,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,546.09 : 218,793.29 = 86,930.75 : x
  2. Step 2: Convert to fraction form
    158,546.09/218,793.29 = 86,930.75/x
  3. Step 3: Cross multiply
    158,546.09x = 218,793.29 × 86,930.75
  4. Step 4: Simplify right side
    158,546.09x = 19,019,864,907.00
  5. Step 5: Solve for x
    x = 19,019,864,907.00/158,546.09
  6. Step 6: Final answer
    x = 119,964.26

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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.