Home / 159,418.06-219,989.82-91,386.26

Finding the Fourth Proportional to 159,418.06, 219,989.82 and 91,386.26

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Solution

The fourth proportional to 159,418.06, 219,989.82 and 91,386.26 is: 126,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,418.06 : 219,989.82 = 91,386.26 : x
  2. Step 2: Convert to fraction form
    159,418.06/219,989.82 = 91,386.26/x
  3. Step 3: Cross multiply
    159,418.06x = 219,989.82 × 91,386.26
  4. Step 4: Simplify right side
    159,418.06x = 20,104,046,955.58
  5. Step 5: Solve for x
    x = 20,104,046,955.58/159,418.06
  6. Step 6: Final answer
    x = 126,108.97

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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.