Home / 199,922.30-299,774.10-81,459.80

Finding the Fourth Proportional to 199,922.30, 299,774.10 and 81,459.80

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Solution

The fourth proportional to 199,922.30, 299,774.10 and 81,459.80 is: 122,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,922.30 : 299,774.10 = 81,459.80 : x
  2. Step 2: Convert to fraction form
    199,922.30/299,774.10 = 81,459.80/x
  3. Step 3: Cross multiply
    199,922.30x = 299,774.10 × 81,459.80
  4. Step 4: Simplify right side
    199,922.30x = 24,419,538,231.18
  5. Step 5: Solve for x
    x = 24,419,538,231.18/199,922.30
  6. Step 6: Final answer
    x = 122,145.14

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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.