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Finding the Fourth Proportional to 172,726.95, 259,090.42 and 67,472.10

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Solution

The fourth proportional to 172,726.95, 259,090.42 and 67,472.10 is: 101,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,726.95 : 259,090.42 = 67,472.10 : x
  2. Step 2: Convert to fraction form
    172,726.95/259,090.42 = 67,472.10/x
  3. Step 3: Cross multiply
    172,726.95x = 259,090.42 × 67,472.10
  4. Step 4: Simplify right side
    172,726.95x = 17,481,374,727.28
  5. Step 5: Solve for x
    x = 17,481,374,727.28/172,726.95
  6. Step 6: Final answer
    x = 101,208.15

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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.