Home / 155,365.96-214,440.42-109,996.78

Finding the Fourth Proportional to 155,365.96, 214,440.42 and 109,996.78

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Solution

The fourth proportional to 155,365.96, 214,440.42 and 109,996.78 is: 151,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,365.96 : 214,440.42 = 109,996.78 : x
  2. Step 2: Convert to fraction form
    155,365.96/214,440.42 = 109,996.78/x
  3. Step 3: Cross multiply
    155,365.96x = 214,440.42 × 109,996.78
  4. Step 4: Simplify right side
    155,365.96x = 23,587,755,701.85
  5. Step 5: Solve for x
    x = 23,587,755,701.85/155,365.96
  6. Step 6: Final answer
    x = 151,820.62

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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.