Home / 151,757.54-209,436.99-83,787.60

Finding the Fourth Proportional to 151,757.54, 209,436.99 and 83,787.60

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Solution

The fourth proportional to 151,757.54, 209,436.99 and 83,787.60 is: 115,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,757.54 : 209,436.99 = 83,787.60 : x
  2. Step 2: Convert to fraction form
    151,757.54/209,436.99 = 83,787.60/x
  3. Step 3: Cross multiply
    151,757.54x = 209,436.99 × 83,787.60
  4. Step 4: Simplify right side
    151,757.54x = 17,548,222,743.32
  5. Step 5: Solve for x
    x = 17,548,222,743.32/151,757.54
  6. Step 6: Final answer
    x = 115,633.28

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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.