Home / 159,329.20-219,877.11-86,734.19

Finding the Fourth Proportional to 159,329.20, 219,877.11 and 86,734.19

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Solution

The fourth proportional to 159,329.20, 219,877.11 and 86,734.19 is: 119,694.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,329.20 : 219,877.11 = 86,734.19 : x
  2. Step 2: Convert to fraction form
    159,329.20/219,877.11 = 86,734.19/x
  3. Step 3: Cross multiply
    159,329.20x = 219,877.11 × 86,734.19
  4. Step 4: Simplify right side
    159,329.20x = 19,070,863,035.39
  5. Step 5: Solve for x
    x = 19,070,863,035.39/159,329.20
  6. Step 6: Final answer
    x = 119,694.71

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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.