Home / 172,770.30-259,138.44-60,429.78

Finding the Fourth Proportional to 172,770.30, 259,138.44 and 60,429.78

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Solution

The fourth proportional to 172,770.30, 259,138.44 and 60,429.78 is: 90,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,770.30 : 259,138.44 = 60,429.78 : x
  2. Step 2: Convert to fraction form
    172,770.30/259,138.44 = 60,429.78/x
  3. Step 3: Cross multiply
    172,770.30x = 259,138.44 × 60,429.78
  4. Step 4: Simplify right side
    172,770.30x = 15,659,678,918.74
  5. Step 5: Solve for x
    x = 15,659,678,918.74/172,770.30
  6. Step 6: Final answer
    x = 90,638.72

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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.