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Finding the Fourth Proportional to 123,998.01, 171,110.03 and 67,408.89

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Solution

The fourth proportional to 123,998.01, 171,110.03 and 67,408.89 is: 93,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,998.01 : 171,110.03 = 67,408.89 : x
  2. Step 2: Convert to fraction form
    123,998.01/171,110.03 = 67,408.89/x
  3. Step 3: Cross multiply
    123,998.01x = 171,110.03 × 67,408.89
  4. Step 4: Simplify right side
    123,998.01x = 11,534,336,853.12
  5. Step 5: Solve for x
    x = 11,534,336,853.12/123,998.01
  6. Step 6: Final answer
    x = 93,020.34

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1.5x scale

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.