Home / 207,129.38-285,848.24-115,249.18

Finding the Fourth Proportional to 207,129.38, 285,848.24 and 115,249.18

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Solution

The fourth proportional to 207,129.38, 285,848.24 and 115,249.18 is: 159,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,129.38 : 285,848.24 = 115,249.18 : x
  2. Step 2: Convert to fraction form
    207,129.38/285,848.24 = 115,249.18/x
  3. Step 3: Cross multiply
    207,129.38x = 285,848.24 × 115,249.18
  4. Step 4: Simplify right side
    207,129.38x = 32,943,775,264.44
  5. Step 5: Solve for x
    x = 32,943,775,264.44/207,129.38
  6. Step 6: Final answer
    x = 159,049.26

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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.