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Finding the Fourth Proportional to 99,364.40, 149,003.40 and 32,778.80

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Solution

The fourth proportional to 99,364.40, 149,003.40 and 32,778.80 is: 49,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.40 : 149,003.40 = 32,778.80 : x
  2. Step 2: Convert to fraction form
    99,364.40/149,003.40 = 32,778.80/x
  3. Step 3: Cross multiply
    99,364.40x = 149,003.40 × 32,778.80
  4. Step 4: Simplify right side
    99,364.40x = 4,884,152,647.92
  5. Step 5: Solve for x
    x = 4,884,152,647.92/99,364.40
  6. Step 6: Final answer
    x = 49,153.95

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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.