Home / 159,435.24-220,016.10-86,836.50

Finding the Fourth Proportional to 159,435.24, 220,016.10 and 86,836.50

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Solution

The fourth proportional to 159,435.24, 220,016.10 and 86,836.50 is: 119,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,435.24 : 220,016.10 = 86,836.50 : x
  2. Step 2: Convert to fraction form
    159,435.24/220,016.10 = 86,836.50/x
  3. Step 3: Cross multiply
    159,435.24x = 220,016.10 × 86,836.50
  4. Step 4: Simplify right side
    159,435.24x = 19,105,428,067.65
  5. Step 5: Solve for x
    x = 19,105,428,067.65/159,435.24
  6. Step 6: Final answer
    x = 119,831.90

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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.