Home / 172,918.40-259,400.28-67,723.70

Finding the Fourth Proportional to 172,918.40, 259,400.28 and 67,723.70

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Solution

The fourth proportional to 172,918.40, 259,400.28 and 67,723.70 is: 101,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,918.40 : 259,400.28 = 67,723.70 : x
  2. Step 2: Convert to fraction form
    172,918.40/259,400.28 = 67,723.70/x
  3. Step 3: Cross multiply
    172,918.40x = 259,400.28 × 67,723.70
  4. Step 4: Simplify right side
    172,918.40x = 17,567,546,742.64
  5. Step 5: Solve for x
    x = 17,567,546,742.64/172,918.40
  6. Step 6: Final answer
    x = 101,594.43

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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.