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Finding the Fourth Proportional to 158,571.57, 218,943.57 and 102,081.36

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Solution

The fourth proportional to 158,571.57, 218,943.57 and 102,081.36 is: 140,946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,571.57 : 218,943.57 = 102,081.36 : x
  2. Step 2: Convert to fraction form
    158,571.57/218,943.57 = 102,081.36/x
  3. Step 3: Cross multiply
    158,571.57x = 218,943.57 × 102,081.36
  4. Step 4: Simplify right side
    158,571.57x = 22,350,057,388.86
  5. Step 5: Solve for x
    x = 22,350,057,388.86/158,571.57
  6. Step 6: Final answer
    x = 140,946.18

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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.