Home / 199,845.78-275,790.78-109,205.52

Finding the Fourth Proportional to 199,845.78, 275,790.78 and 109,205.52

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Solution

The fourth proportional to 199,845.78, 275,790.78 and 109,205.52 is: 150,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,845.78 : 275,790.78 = 109,205.52 : x
  2. Step 2: Convert to fraction form
    199,845.78/275,790.78 = 109,205.52/x
  3. Step 3: Cross multiply
    199,845.78x = 275,790.78 × 109,205.52
  4. Step 4: Simplify right side
    199,845.78x = 30,117,875,541.11
  5. Step 5: Solve for x
    x = 30,117,875,541.11/199,845.78
  6. Step 6: Final answer
    x = 150,705.59

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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.