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Finding the Fourth Proportional to 101,152.70, 151,692.60 and 51,216.20

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Solution

The fourth proportional to 101,152.70, 151,692.60 and 51,216.20 is: 76,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,152.70 : 151,692.60 = 51,216.20 : x
  2. Step 2: Convert to fraction form
    101,152.70/151,692.60 = 51,216.20/x
  3. Step 3: Cross multiply
    101,152.70x = 151,692.60 × 51,216.20
  4. Step 4: Simplify right side
    101,152.70x = 7,769,118,540.12
  5. Step 5: Solve for x
    x = 7,769,118,540.12/101,152.70
  6. Step 6: Final answer
    x = 76,805.84

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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.