Home / 99,496.20-149,244.30-90,310.80

Finding the Fourth Proportional to 99,496.20, 149,244.30 and 90,310.80

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Solution

The fourth proportional to 99,496.20, 149,244.30 and 90,310.80 is: 135,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,496.20 : 149,244.30 = 90,310.80 : x
  2. Step 2: Convert to fraction form
    99,496.20/149,244.30 = 90,310.80/x
  3. Step 3: Cross multiply
    99,496.20x = 149,244.30 × 90,310.80
  4. Step 4: Simplify right side
    99,496.20x = 13,478,372,128.44
  5. Step 5: Solve for x
    x = 13,478,372,128.44/99,496.20
  6. Step 6: Final answer
    x = 135,466.20

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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.