Home / 199,922.34-299,899-66,803.07

Finding the Fourth Proportional to 199,922.34, 299,899 and 66,803.07

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Solution

The fourth proportional to 199,922.34, 299,899 and 66,803.07 is: 100,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,922.34 : 299,899 = 66,803.07 : x
  2. Step 2: Convert to fraction form
    199,922.34/299,899 = 66,803.07/x
  3. Step 3: Cross multiply
    199,922.34x = 299,899 × 66,803.07
  4. Step 4: Simplify right side
    199,922.34x = 20,034,173,889.93
  5. Step 5: Solve for x
    x = 20,034,173,889.93/199,922.34
  6. Step 6: Final answer
    x = 100,209.78

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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.