Home / 159,542.97-220,168.43-86,945.81

Finding the Fourth Proportional to 159,542.97, 220,168.43 and 86,945.81

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Solution

The fourth proportional to 159,542.97, 220,168.43 and 86,945.81 is: 119,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,542.97 : 220,168.43 = 86,945.81 : x
  2. Step 2: Convert to fraction form
    159,542.97/220,168.43 = 86,945.81/x
  3. Step 3: Cross multiply
    159,542.97x = 220,168.43 × 86,945.81
  4. Step 4: Simplify right side
    159,542.97x = 19,142,721,273.25
  5. Step 5: Solve for x
    x = 19,142,721,273.25/159,542.97
  6. Step 6: Final answer
    x = 119,984.74

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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.