Home / 199,370.10-298,709.55-129,213.30

Finding the Fourth Proportional to 199,370.10, 298,709.55 and 129,213.30

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Solution

The fourth proportional to 199,370.10, 298,709.55 and 129,213.30 is: 193,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,370.10 : 298,709.55 = 129,213.30 : x
  2. Step 2: Convert to fraction form
    199,370.10/298,709.55 = 129,213.30/x
  3. Step 3: Cross multiply
    199,370.10x = 298,709.55 × 129,213.30
  4. Step 4: Simplify right side
    199,370.10x = 38,597,246,697.02
  5. Step 5: Solve for x
    x = 38,597,246,697.02/199,370.10
  6. Step 6: Final answer
    x = 193,595.96

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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.