Home / 172,811.44-259,253.34-72,971.92

Finding the Fourth Proportional to 172,811.44, 259,253.34 and 72,971.92

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Solution

The fourth proportional to 172,811.44, 259,253.34 and 72,971.92 is: 109,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,811.44 : 259,253.34 = 72,971.92 : x
  2. Step 2: Convert to fraction form
    172,811.44/259,253.34 = 72,971.92/x
  3. Step 3: Cross multiply
    172,811.44x = 259,253.34 × 72,971.92
  4. Step 4: Simplify right side
    172,811.44x = 18,918,213,986.21
  5. Step 5: Solve for x
    x = 18,918,213,986.21/172,811.44
  6. Step 6: Final answer
    x = 109,473.16

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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.