Home / 99,749.10-149,498.91-49,843.20

Finding the Fourth Proportional to 99,749.10, 149,498.91 and 49,843.20

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Solution

The fourth proportional to 99,749.10, 149,498.91 and 49,843.20 is: 74,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,749.10 : 149,498.91 = 49,843.20 : x
  2. Step 2: Convert to fraction form
    99,749.10/149,498.91 = 49,843.20/x
  3. Step 3: Cross multiply
    99,749.10x = 149,498.91 × 49,843.20
  4. Step 4: Simplify right side
    99,749.10x = 7,451,504,070.91
  5. Step 5: Solve for x
    x = 7,451,504,070.91/99,749.10
  6. Step 6: Final answer
    x = 74,702.47

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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.