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Finding the Fourth Proportional to 103,701.20, 155,551.80 and 33,630.80

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Solution

The fourth proportional to 103,701.20, 155,551.80 and 33,630.80 is: 50,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.20 : 155,551.80 = 33,630.80 : x
  2. Step 2: Convert to fraction form
    103,701.20/155,551.80 = 33,630.80/x
  3. Step 3: Cross multiply
    103,701.20x = 155,551.80 × 33,630.80
  4. Step 4: Simplify right side
    103,701.20x = 5,231,331,475.44
  5. Step 5: Solve for x
    x = 5,231,331,475.44/103,701.20
  6. Step 6: Final answer
    x = 50,446.20

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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.