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Finding the Fourth Proportional to 172,844.48, 259,089.17 and 66,203.43

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Solution

The fourth proportional to 172,844.48, 259,089.17 and 66,203.43 is: 99,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,844.48 : 259,089.17 = 66,203.43 : x
  2. Step 2: Convert to fraction form
    172,844.48/259,089.17 = 66,203.43/x
  3. Step 3: Cross multiply
    172,844.48x = 259,089.17 × 66,203.43
  4. Step 4: Simplify right side
    172,844.48x = 17,152,590,427.25
  5. Step 5: Solve for x
    x = 17,152,590,427.25/172,844.48
  6. Step 6: Final answer
    x = 99,237.13

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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.