Home / 159,287.11-219,816.99-91,308.16

Finding the Fourth Proportional to 159,287.11, 219,816.99 and 91,308.16

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Solution

The fourth proportional to 159,287.11, 219,816.99 and 91,308.16 is: 126,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,287.11 : 219,816.99 = 91,308.16 : x
  2. Step 2: Convert to fraction form
    159,287.11/219,816.99 = 91,308.16/x
  3. Step 3: Cross multiply
    159,287.11x = 219,816.99 × 91,308.16
  4. Step 4: Simplify right side
    159,287.11x = 20,071,085,168.41
  5. Step 5: Solve for x
    x = 20,071,085,168.41/159,287.11
  6. Step 6: Final answer
    x = 126,005.71

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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.