Home / 202,319.21-303,614.22-83,990.63

Finding the Fourth Proportional to 202,319.21, 303,614.22 and 83,990.63

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Solution

The fourth proportional to 202,319.21, 303,614.22 and 83,990.63 is: 126,042.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.21 : 303,614.22 = 83,990.63 : x
  2. Step 2: Convert to fraction form
    202,319.21/303,614.22 = 83,990.63/x
  3. Step 3: Cross multiply
    202,319.21x = 303,614.22 × 83,990.63
  4. Step 4: Simplify right side
    202,319.21x = 25,500,749,614.76
  5. Step 5: Solve for x
    x = 25,500,749,614.76/202,319.21
  6. Step 6: Final answer
    x = 126,042.16

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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.