Home / 134,481.20-201,721.80-90,244.40

Finding the Fourth Proportional to 134,481.20, 201,721.80 and 90,244.40

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Solution

The fourth proportional to 134,481.20, 201,721.80 and 90,244.40 is: 135,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,481.20 : 201,721.80 = 90,244.40 : x
  2. Step 2: Convert to fraction form
    134,481.20/201,721.80 = 90,244.40/x
  3. Step 3: Cross multiply
    134,481.20x = 201,721.80 × 90,244.40
  4. Step 4: Simplify right side
    134,481.20x = 18,204,262,807.92
  5. Step 5: Solve for x
    x = 18,204,262,807.92/134,481.20
  6. Step 6: Final answer
    x = 135,366.60

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1.5x scale

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.