Home / 199,301.28-298,886.92-66,145.80

Finding the Fourth Proportional to 199,301.28, 298,886.92 and 66,145.80

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Solution

The fourth proportional to 199,301.28, 298,886.92 and 66,145.80 is: 99,197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,301.28 : 298,886.92 = 66,145.80 : x
  2. Step 2: Convert to fraction form
    199,301.28/298,886.92 = 66,145.80/x
  3. Step 3: Cross multiply
    199,301.28x = 298,886.92 × 66,145.80
  4. Step 4: Simplify right side
    199,301.28x = 19,770,114,432.94
  5. Step 5: Solve for x
    x = 19,770,114,432.94/199,301.28
  6. Step 6: Final answer
    x = 99,197.13

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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.