Home / 172,739.12-258,890.38-92,577.88

Finding the Fourth Proportional to 172,739.12, 258,890.38 and 92,577.88

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Solution

The fourth proportional to 172,739.12, 258,890.38 and 92,577.88 is: 138,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,739.12 : 258,890.38 = 92,577.88 : x
  2. Step 2: Convert to fraction form
    172,739.12/258,890.38 = 92,577.88/x
  3. Step 3: Cross multiply
    172,739.12x = 258,890.38 × 92,577.88
  4. Step 4: Simplify right side
    172,739.12x = 23,967,522,532.79
  5. Step 5: Solve for x
    x = 23,967,522,532.79/172,739.12
  6. Step 6: Final answer
    x = 138,749.82

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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.