Home / 248,129.90-372,231.75-115,023.61

Finding the Fourth Proportional to 248,129.90, 372,231.75 and 115,023.61

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Solution

The fourth proportional to 248,129.90, 372,231.75 and 115,023.61 is: 172,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,129.90 : 372,231.75 = 115,023.61 : x
  2. Step 2: Convert to fraction form
    248,129.90/372,231.75 = 115,023.61/x
  3. Step 3: Cross multiply
    248,129.90x = 372,231.75 × 115,023.61
  4. Step 4: Simplify right side
    248,129.90x = 42,815,440,538.25
  5. Step 5: Solve for x
    x = 42,815,440,538.25/248,129.90
  6. Step 6: Final answer
    x = 172,552.52

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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.