Home / 199,539.27-275,465.78-154,115.28

Finding the Fourth Proportional to 199,539.27, 275,465.78 and 154,115.28

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Solution

The fourth proportional to 199,539.27, 275,465.78 and 154,115.28 is: 212,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,539.27 : 275,465.78 = 154,115.28 : x
  2. Step 2: Convert to fraction form
    199,539.27/275,465.78 = 154,115.28/x
  3. Step 3: Cross multiply
    199,539.27x = 275,465.78 × 154,115.28
  4. Step 4: Simplify right side
    199,539.27x = 42,453,485,044.54
  5. Step 5: Solve for x
    x = 42,453,485,044.54/199,539.27
  6. Step 6: Final answer
    x = 212,757.54

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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.