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Finding the Fourth Proportional to 158,344.96, 218,456.36 and 103,927.36

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Solution

The fourth proportional to 158,344.96, 218,456.36 and 103,927.36 is: 143,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,344.96 : 218,456.36 = 103,927.36 : x
  2. Step 2: Convert to fraction form
    158,344.96/218,456.36 = 103,927.36/x
  3. Step 3: Cross multiply
    158,344.96x = 218,456.36 × 103,927.36
  4. Step 4: Simplify right side
    158,344.96x = 22,703,592,770.01
  5. Step 5: Solve for x
    x = 22,703,592,770.01/158,344.96
  6. Step 6: Final answer
    x = 143,380.58

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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.