Home / 221,095.46-331,561.59-78,902.69

Finding the Fourth Proportional to 221,095.46, 331,561.59 and 78,902.69

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Solution

The fourth proportional to 221,095.46, 331,561.59 and 78,902.69 is: 118,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,095.46 : 331,561.59 = 78,902.69 : x
  2. Step 2: Convert to fraction form
    221,095.46/331,561.59 = 78,902.69/x
  3. Step 3: Cross multiply
    221,095.46x = 331,561.59 × 78,902.69
  4. Step 4: Simplify right side
    221,095.46x = 26,161,101,351.68
  5. Step 5: Solve for x
    x = 26,161,101,351.68/221,095.46
  6. Step 6: Final answer
    x = 118,324.91

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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.