Home / 159,355.23-219,906.27-91,412.43

Finding the Fourth Proportional to 159,355.23, 219,906.27 and 91,412.43

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Solution

The fourth proportional to 159,355.23, 219,906.27 and 91,412.43 is: 126,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,355.23 : 219,906.27 = 91,412.43 : x
  2. Step 2: Convert to fraction form
    159,355.23/219,906.27 = 91,412.43/x
  3. Step 3: Cross multiply
    159,355.23x = 219,906.27 × 91,412.43
  4. Step 4: Simplify right side
    159,355.23x = 20,102,166,512.94
  5. Step 5: Solve for x
    x = 20,102,166,512.94/159,355.23
  6. Step 6: Final answer
    x = 126,146.89

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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.