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Finding the Fourth Proportional to 172,647.86, 238,266 and 104,667.66

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Solution

The fourth proportional to 172,647.86, 238,266 and 104,667.66 is: 144,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,647.86 : 238,266 = 104,667.66 : x
  2. Step 2: Convert to fraction form
    172,647.86/238,266 = 104,667.66/x
  3. Step 3: Cross multiply
    172,647.86x = 238,266 × 104,667.66
  4. Step 4: Simplify right side
    172,647.86x = 24,938,744,677.56
  5. Step 5: Solve for x
    x = 24,938,744,677.56/172,647.86
  6. Step 6: Final answer
    x = 144,448.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.