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Finding the Fourth Proportional to 124,980.33, 172,363.77 and 88,609.98

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Solution

The fourth proportional to 124,980.33, 172,363.77 and 88,609.98 is: 122,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,980.33 : 172,363.77 = 88,609.98 : x
  2. Step 2: Convert to fraction form
    124,980.33/172,363.77 = 88,609.98/x
  3. Step 3: Cross multiply
    124,980.33x = 172,363.77 × 88,609.98
  4. Step 4: Simplify right side
    124,980.33x = 15,273,150,212.42
  5. Step 5: Solve for x
    x = 15,273,150,212.42/124,980.33
  6. Step 6: Final answer
    x = 122,204.43

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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.