Home / 199,303.28-298,889.92-66,147.80

Finding the Fourth Proportional to 199,303.28, 298,889.92 and 66,147.80

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Solution

The fourth proportional to 199,303.28, 298,889.92 and 66,147.80 is: 99,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,303.28 : 298,889.92 = 66,147.80 : x
  2. Step 2: Convert to fraction form
    199,303.28/298,889.92 = 66,147.80/x
  3. Step 3: Cross multiply
    199,303.28x = 298,889.92 × 66,147.80
  4. Step 4: Simplify right side
    199,303.28x = 19,770,910,650.18
  5. Step 5: Solve for x
    x = 19,770,910,650.18/199,303.28
  6. Step 6: Final answer
    x = 99,200.13

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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.