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Finding the Fourth Proportional to 158,589, 218,792.76 and 101,230.56

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Solution

The fourth proportional to 158,589, 218,792.76 and 101,230.56 is: 139,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,589 : 218,792.76 = 101,230.56 : x
  2. Step 2: Convert to fraction form
    158,589/218,792.76 = 101,230.56/x
  3. Step 3: Cross multiply
    158,589x = 218,792.76 × 101,230.56
  4. Step 4: Simplify right side
    158,589x = 22,148,513,618.75
  5. Step 5: Solve for x
    x = 22,148,513,618.75/158,589
  6. Step 6: Final answer
    x = 139,659.84

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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.