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Finding the Fourth Proportional to 159,229.50, 219,735.48 and 90,332.11

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Solution

The fourth proportional to 159,229.50, 219,735.48 and 90,332.11 is: 124,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,229.50 : 219,735.48 = 90,332.11 : x
  2. Step 2: Convert to fraction form
    159,229.50/219,735.48 = 90,332.11/x
  3. Step 3: Cross multiply
    159,229.50x = 219,735.48 × 90,332.11
  4. Step 4: Simplify right side
    159,229.50x = 19,849,170,163.68
  5. Step 5: Solve for x
    x = 19,849,170,163.68/159,229.50
  6. Step 6: Final answer
    x = 124,657.62

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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.