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Finding the Fourth Proportional to 159,269.79, 219,767.23 and 91,273.69

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Solution

The fourth proportional to 159,269.79, 219,767.23 and 91,273.69 is: 125,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,269.79 : 219,767.23 = 91,273.69 : x
  2. Step 2: Convert to fraction form
    159,269.79/219,767.23 = 91,273.69/x
  3. Step 3: Cross multiply
    159,269.79x = 219,767.23 × 91,273.69
  4. Step 4: Simplify right side
    159,269.79x = 20,058,964,662.37
  5. Step 5: Solve for x
    x = 20,058,964,662.37/159,269.79
  6. Step 6: Final answer
    x = 125,943.31

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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.