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Finding the Fourth Proportional to 159,234.28, 219,749.35 and 91,264.37

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Solution

The fourth proportional to 159,234.28, 219,749.35 and 91,264.37 is: 125,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,234.28 : 219,749.35 = 91,264.37 : x
  2. Step 2: Convert to fraction form
    159,234.28/219,749.35 = 91,264.37/x
  3. Step 3: Cross multiply
    159,234.28x = 219,749.35 × 91,264.37
  4. Step 4: Simplify right side
    159,234.28x = 20,055,285,985.66
  5. Step 5: Solve for x
    x = 20,055,285,985.66/159,234.28
  6. Step 6: Final answer
    x = 125,948.29

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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.