Home / 199,213.56-298,778.44-72,913.40

Finding the Fourth Proportional to 199,213.56, 298,778.44 and 72,913.40

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Solution

The fourth proportional to 199,213.56, 298,778.44 and 72,913.40 is: 109,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,213.56 : 298,778.44 = 72,913.40 : x
  2. Step 2: Convert to fraction form
    199,213.56/298,778.44 = 72,913.40/x
  3. Step 3: Cross multiply
    199,213.56x = 298,778.44 × 72,913.40
  4. Step 4: Simplify right side
    199,213.56x = 21,784,951,907.10
  5. Step 5: Solve for x
    x = 21,784,951,907.10/199,213.56
  6. Step 6: Final answer
    x = 109,354.76

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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.