Home / 151,718.82-209,356.14-83,734.56

Finding the Fourth Proportional to 151,718.82, 209,356.14 and 83,734.56

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Solution

The fourth proportional to 151,718.82, 209,356.14 and 83,734.56 is: 115,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,718.82 : 209,356.14 = 83,734.56 : x
  2. Step 2: Convert to fraction form
    151,718.82/209,356.14 = 83,734.56/x
  3. Step 3: Cross multiply
    151,718.82x = 209,356.14 × 83,734.56
  4. Step 4: Simplify right side
    151,718.82x = 17,530,344,266.20
  5. Step 5: Solve for x
    x = 17,530,344,266.20/151,718.82
  6. Step 6: Final answer
    x = 115,544.96

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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.