Home / 159,318.20-219,857.40-87,696.69

Finding the Fourth Proportional to 159,318.20, 219,857.40 and 87,696.69

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Solution

The fourth proportional to 159,318.20, 219,857.40 and 87,696.69 is: 121,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,318.20 : 219,857.40 = 87,696.69 : x
  2. Step 2: Convert to fraction form
    159,318.20/219,857.40 = 87,696.69/x
  3. Step 3: Cross multiply
    159,318.20x = 219,857.40 × 87,696.69
  4. Step 4: Simplify right side
    159,318.20x = 19,280,766,252.01
  5. Step 5: Solve for x
    x = 19,280,766,252.01/159,318.20
  6. Step 6: Final answer
    x = 121,020.49

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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.