Home / 199,815.48-275,742.15-109,169.49

Finding the Fourth Proportional to 199,815.48, 275,742.15 and 109,169.49

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Solution

The fourth proportional to 199,815.48, 275,742.15 and 109,169.49 is: 150,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,815.48 : 275,742.15 = 109,169.49 : x
  2. Step 2: Convert to fraction form
    199,815.48/275,742.15 = 109,169.49/x
  3. Step 3: Cross multiply
    199,815.48x = 275,742.15 × 109,169.49
  4. Step 4: Simplify right side
    199,815.48x = 30,102,629,887.00
  5. Step 5: Solve for x
    x = 30,102,629,887.00/199,815.48
  6. Step 6: Final answer
    x = 150,652.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.