Home / 159,268.29-219,790.26-87,648.31

Finding the Fourth Proportional to 159,268.29, 219,790.26 and 87,648.31

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Solution

The fourth proportional to 159,268.29, 219,790.26 and 87,648.31 is: 120,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,268.29 : 219,790.26 = 87,648.31 : x
  2. Step 2: Convert to fraction form
    159,268.29/219,790.26 = 87,648.31/x
  3. Step 3: Cross multiply
    159,268.29x = 219,790.26 × 87,648.31
  4. Step 4: Simplify right side
    159,268.29x = 19,264,244,843.46
  5. Step 5: Solve for x
    x = 19,264,244,843.46/159,268.29
  6. Step 6: Final answer
    x = 120,954.68

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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.