Home / 134,872.20-202,308.30-90,520.20

Finding the Fourth Proportional to 134,872.20, 202,308.30 and 90,520.20

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Solution

The fourth proportional to 134,872.20, 202,308.30 and 90,520.20 is: 135,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,872.20 : 202,308.30 = 90,520.20 : x
  2. Step 2: Convert to fraction form
    134,872.20/202,308.30 = 90,520.20/x
  3. Step 3: Cross multiply
    134,872.20x = 202,308.30 × 90,520.20
  4. Step 4: Simplify right side
    134,872.20x = 18,312,987,777.66
  5. Step 5: Solve for x
    x = 18,312,987,777.66/134,872.20
  6. Step 6: Final answer
    x = 135,780.30

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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.