Home / 134,873.20-202,309.80-90,521.20

Finding the Fourth Proportional to 134,873.20, 202,309.80 and 90,521.20

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Solution

The fourth proportional to 134,873.20, 202,309.80 and 90,521.20 is: 135,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,873.20 : 202,309.80 = 90,521.20 : x
  2. Step 2: Convert to fraction form
    134,873.20/202,309.80 = 90,521.20/x
  3. Step 3: Cross multiply
    134,873.20x = 202,309.80 × 90,521.20
  4. Step 4: Simplify right side
    134,873.20x = 18,313,325,867.76
  5. Step 5: Solve for x
    x = 18,313,325,867.76/134,873.20
  6. Step 6: Final answer
    x = 135,781.80

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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.