Home / 188,929.05-260,718.18-102,889.54

Finding the Fourth Proportional to 188,929.05, 260,718.18 and 102,889.54

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Solution

The fourth proportional to 188,929.05, 260,718.18 and 102,889.54 is: 141,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,929.05 : 260,718.18 = 102,889.54 : x
  2. Step 2: Convert to fraction form
    188,929.05/260,718.18 = 102,889.54/x
  3. Step 3: Cross multiply
    188,929.05x = 260,718.18 × 102,889.54
  4. Step 4: Simplify right side
    188,929.05x = 26,825,172,306.25
  5. Step 5: Solve for x
    x = 26,825,172,306.25/188,929.05
  6. Step 6: Final answer
    x = 141,985.43

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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.