Home / 154,313.91-231,260.69-86,878.14

Finding the Fourth Proportional to 154,313.91, 231,260.69 and 86,878.14

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Solution

The fourth proportional to 154,313.91, 231,260.69 and 86,878.14 is: 130,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,313.91 : 231,260.69 = 86,878.14 : x
  2. Step 2: Convert to fraction form
    154,313.91/231,260.69 = 86,878.14/x
  3. Step 3: Cross multiply
    154,313.91x = 231,260.69 × 86,878.14
  4. Step 4: Simplify right side
    154,313.91x = 20,091,498,167.93
  5. Step 5: Solve for x
    x = 20,091,498,167.93/154,313.91
  6. Step 6: Final answer
    x = 130,198.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.