Home / 107,721.60-161,608.04-54,282.27

Finding the Fourth Proportional to 107,721.60, 161,608.04 and 54,282.27

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Solution

The fourth proportional to 107,721.60, 161,608.04 and 54,282.27 is: 81,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,721.60 : 161,608.04 = 54,282.27 : x
  2. Step 2: Convert to fraction form
    107,721.60/161,608.04 = 54,282.27/x
  3. Step 3: Cross multiply
    107,721.60x = 161,608.04 × 54,282.27
  4. Step 4: Simplify right side
    107,721.60x = 8,772,450,990.04
  5. Step 5: Solve for x
    x = 8,772,450,990.04/107,721.60
  6. Step 6: Final answer
    x = 81,436.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.