Home / 158,734.89-219,053.97-87,115.10

Finding the Fourth Proportional to 158,734.89, 219,053.97 and 87,115.10

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Solution

The fourth proportional to 158,734.89, 219,053.97 and 87,115.10 is: 120,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,734.89 : 219,053.97 = 87,115.10 : x
  2. Step 2: Convert to fraction form
    158,734.89/219,053.97 = 87,115.10/x
  3. Step 3: Cross multiply
    158,734.89x = 219,053.97 × 87,115.10
  4. Step 4: Simplify right side
    158,734.89x = 19,082,907,406.68
  5. Step 5: Solve for x
    x = 19,082,907,406.68/158,734.89
  6. Step 6: Final answer
    x = 120,218.73

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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.