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Finding the Fourth Proportional to 159,419.48, 239,162.43 and 84,519.28

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Solution

The fourth proportional to 159,419.48, 239,162.43 and 84,519.28 is: 126,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,419.48 : 239,162.43 = 84,519.28 : x
  2. Step 2: Convert to fraction form
    159,419.48/239,162.43 = 84,519.28/x
  3. Step 3: Cross multiply
    159,419.48x = 239,162.43 × 84,519.28
  4. Step 4: Simplify right side
    159,419.48x = 20,213,835,190.84
  5. Step 5: Solve for x
    x = 20,213,835,190.84/159,419.48
  6. Step 6: Final answer
    x = 126,796.52

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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.