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Finding the Fourth Proportional to 155,676, 214,833.12 and 88,608

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Solution

The fourth proportional to 155,676, 214,833.12 and 88,608 is: 122,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,676 : 214,833.12 = 88,608 : x
  2. Step 2: Convert to fraction form
    155,676/214,833.12 = 88,608/x
  3. Step 3: Cross multiply
    155,676x = 214,833.12 × 88,608
  4. Step 4: Simplify right side
    155,676x = 19,035,933,096.96
  5. Step 5: Solve for x
    x = 19,035,933,096.96/155,676
  6. Step 6: Final answer
    x = 122,279.18

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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.