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Finding the Fourth Proportional to 109,307.57, 150,855.20 and 63,982.80

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Solution

The fourth proportional to 109,307.57, 150,855.20 and 63,982.80 is: 88,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,307.57 : 150,855.20 = 63,982.80 : x
  2. Step 2: Convert to fraction form
    109,307.57/150,855.20 = 63,982.80/x
  3. Step 3: Cross multiply
    109,307.57x = 150,855.20 × 63,982.80
  4. Step 4: Simplify right side
    109,307.57x = 9,652,137,770.65
  5. Step 5: Solve for x
    x = 9,652,137,770.65/109,307.57
  6. Step 6: Final answer
    x = 88,302.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.