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Finding the Fourth Proportional to 172,741.19, 259,111.80 and 67,486.37

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Solution

The fourth proportional to 172,741.19, 259,111.80 and 67,486.37 is: 101,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,741.19 : 259,111.80 = 67,486.37 : x
  2. Step 2: Convert to fraction form
    172,741.19/259,111.80 = 67,486.37/x
  3. Step 3: Cross multiply
    172,741.19x = 259,111.80 × 67,486.37
  4. Step 4: Simplify right side
    172,741.19x = 17,486,513,510.61
  5. Step 5: Solve for x
    x = 17,486,513,510.61/172,741.19
  6. Step 6: Final answer
    x = 101,229.56

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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.