Home / 145,319.22-217,982.97-40,138.20

Finding the Fourth Proportional to 145,319.22, 217,982.97 and 40,138.20

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Solution

The fourth proportional to 145,319.22, 217,982.97 and 40,138.20 is: 60,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,319.22 : 217,982.97 = 40,138.20 : x
  2. Step 2: Convert to fraction form
    145,319.22/217,982.97 = 40,138.20/x
  3. Step 3: Cross multiply
    145,319.22x = 217,982.97 × 40,138.20
  4. Step 4: Simplify right side
    145,319.22x = 8,749,444,046.45
  5. Step 5: Solve for x
    x = 8,749,444,046.45/145,319.22
  6. Step 6: Final answer
    x = 60,208.44

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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.