Home / 199,516.44-299,331.06-81,272.76

Finding the Fourth Proportional to 199,516.44, 299,331.06 and 81,272.76

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Solution

The fourth proportional to 199,516.44, 299,331.06 and 81,272.76 is: 121,932.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,516.44 : 299,331.06 = 81,272.76 : x
  2. Step 2: Convert to fraction form
    199,516.44/299,331.06 = 81,272.76/x
  3. Step 3: Cross multiply
    199,516.44x = 299,331.06 × 81,272.76
  4. Step 4: Simplify right side
    199,516.44x = 24,327,461,399.93
  5. Step 5: Solve for x
    x = 24,327,461,399.93/199,516.44
  6. Step 6: Final answer
    x = 121,932.11

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1.5x scale

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.