Home / 159,130.82-219,538.37-91,111.44

Finding the Fourth Proportional to 159,130.82, 219,538.37 and 91,111.44

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Solution

The fourth proportional to 159,130.82, 219,538.37 and 91,111.44 is: 125,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,130.82 : 219,538.37 = 91,111.44 : x
  2. Step 2: Convert to fraction form
    159,130.82/219,538.37 = 91,111.44/x
  3. Step 3: Cross multiply
    159,130.82x = 219,538.37 × 91,111.44
  4. Step 4: Simplify right side
    159,130.82x = 20,002,456,570.40
  5. Step 5: Solve for x
    x = 20,002,456,570.40/159,130.82
  6. Step 6: Final answer
    x = 125,698.20

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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.