Home / 158,968.96-219,351.36-91,888

Finding the Fourth Proportional to 158,968.96, 219,351.36 and 91,888

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Solution

The fourth proportional to 158,968.96, 219,351.36 and 91,888 is: 126,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,968.96 : 219,351.36 = 91,888 : x
  2. Step 2: Convert to fraction form
    158,968.96/219,351.36 = 91,888/x
  3. Step 3: Cross multiply
    158,968.96x = 219,351.36 × 91,888
  4. Step 4: Simplify right side
    158,968.96x = 20,155,757,767.68
  5. Step 5: Solve for x
    x = 20,155,757,767.68/158,968.96
  6. Step 6: Final answer
    x = 126,790.52

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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.