Home / 165,260.80-247,718.40-90,265.60

Finding the Fourth Proportional to 165,260.80, 247,718.40 and 90,265.60

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Solution

The fourth proportional to 165,260.80, 247,718.40 and 90,265.60 is: 135,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,260.80 : 247,718.40 = 90,265.60 : x
  2. Step 2: Convert to fraction form
    165,260.80/247,718.40 = 90,265.60/x
  3. Step 3: Cross multiply
    165,260.80x = 247,718.40 × 90,265.60
  4. Step 4: Simplify right side
    165,260.80x = 22,360,450,007.04
  5. Step 5: Solve for x
    x = 22,360,450,007.04/165,260.80
  6. Step 6: Final answer
    x = 135,304.02

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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.