Home / 101,331.20-151,982.40-31,217.60

Finding the Fourth Proportional to 101,331.20, 151,982.40 and 31,217.60

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Solution

The fourth proportional to 101,331.20, 151,982.40 and 31,217.60 is: 46,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,331.20 : 151,982.40 = 31,217.60 : x
  2. Step 2: Convert to fraction form
    101,331.20/151,982.40 = 31,217.60/x
  3. Step 3: Cross multiply
    101,331.20x = 151,982.40 × 31,217.60
  4. Step 4: Simplify right side
    101,331.20x = 4,744,525,770.24
  5. Step 5: Solve for x
    x = 4,744,525,770.24/101,331.20
  6. Step 6: Final answer
    x = 46,821.96

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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.