Home / 145,481.37-218,221.75-40,300.03

Finding the Fourth Proportional to 145,481.37, 218,221.75 and 40,300.03

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Solution

The fourth proportional to 145,481.37, 218,221.75 and 40,300.03 is: 60,449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,481.37 : 218,221.75 = 40,300.03 : x
  2. Step 2: Convert to fraction form
    145,481.37/218,221.75 = 40,300.03/x
  3. Step 3: Cross multiply
    145,481.37x = 218,221.75 × 40,300.03
  4. Step 4: Simplify right side
    145,481.37x = 8,794,343,168.12
  5. Step 5: Solve for x
    x = 8,794,343,168.12/145,481.37
  6. Step 6: Final answer
    x = 60,449.96

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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.