Home / 155,638.13-214,788.60-95,189.78

Finding the Fourth Proportional to 155,638.13, 214,788.60 and 95,189.78

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Solution

The fourth proportional to 155,638.13, 214,788.60 and 95,189.78 is: 131,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,638.13 : 214,788.60 = 95,189.78 : x
  2. Step 2: Convert to fraction form
    155,638.13/214,788.60 = 95,189.78/x
  3. Step 3: Cross multiply
    155,638.13x = 214,788.60 × 95,189.78
  4. Step 4: Simplify right side
    155,638.13x = 20,445,679,104.56
  5. Step 5: Solve for x
    x = 20,445,679,104.56/155,638.13
  6. Step 6: Final answer
    x = 131,366.78

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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.