Home / 178,781.76-268,168.48-90,011.43

Finding the Fourth Proportional to 178,781.76, 268,168.48 and 90,011.43

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Solution

The fourth proportional to 178,781.76, 268,168.48 and 90,011.43 is: 135,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,781.76 : 268,168.48 = 90,011.43 : x
  2. Step 2: Convert to fraction form
    178,781.76/268,168.48 = 90,011.43/x
  3. Step 3: Cross multiply
    178,781.76x = 268,168.48 × 90,011.43
  4. Step 4: Simplify right side
    178,781.76x = 24,138,228,365.73
  5. Step 5: Solve for x
    x = 24,138,228,365.73/178,781.76
  6. Step 6: Final answer
    x = 135,015.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.