Home / 99,690.29-149,550.39-32,199.78

Finding the Fourth Proportional to 99,690.29, 149,550.39 and 32,199.78

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Solution

The fourth proportional to 99,690.29, 149,550.39 and 32,199.78 is: 48,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,690.29 : 149,550.39 = 32,199.78 : x
  2. Step 2: Convert to fraction form
    99,690.29/149,550.39 = 32,199.78/x
  3. Step 3: Cross multiply
    99,690.29x = 149,550.39 × 32,199.78
  4. Step 4: Simplify right side
    99,690.29x = 4,815,489,656.91
  5. Step 5: Solve for x
    x = 4,815,489,656.91/99,690.29
  6. Step 6: Final answer
    x = 48,304.50

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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.