Home / 99,189.72-148,789.08-28,117.44

Finding the Fourth Proportional to 99,189.72, 148,789.08 and 28,117.44

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Solution

The fourth proportional to 99,189.72, 148,789.08 and 28,117.44 is: 42,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.72 : 148,789.08 = 28,117.44 : x
  2. Step 2: Convert to fraction form
    99,189.72/148,789.08 = 28,117.44/x
  3. Step 3: Cross multiply
    99,189.72x = 148,789.08 × 28,117.44
  4. Step 4: Simplify right side
    99,189.72x = 4,183,568,029.56
  5. Step 5: Solve for x
    x = 4,183,568,029.56/99,189.72
  6. Step 6: Final answer
    x = 42,177.44

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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.