Home / 165,052.87-247,579.31-90,132.15

Finding the Fourth Proportional to 165,052.87, 247,579.31 and 90,132.15

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Solution

The fourth proportional to 165,052.87, 247,579.31 and 90,132.15 is: 135,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,052.87 : 247,579.31 = 90,132.15 : x
  2. Step 2: Convert to fraction form
    165,052.87/247,579.31 = 90,132.15/x
  3. Step 3: Cross multiply
    165,052.87x = 247,579.31 × 90,132.15
  4. Step 4: Simplify right side
    165,052.87x = 22,314,853,817.26
  5. Step 5: Solve for x
    x = 22,314,853,817.26/165,052.87
  6. Step 6: Final answer
    x = 135,198.22

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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.