Home / 198,826.20-274,335.12-145,140.48

Finding the Fourth Proportional to 198,826.20, 274,335.12 and 145,140.48

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Solution

The fourth proportional to 198,826.20, 274,335.12 and 145,140.48 is: 200,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,826.20 : 274,335.12 = 145,140.48 : x
  2. Step 2: Convert to fraction form
    198,826.20/274,335.12 = 145,140.48/x
  3. Step 3: Cross multiply
    198,826.20x = 274,335.12 × 145,140.48
  4. Step 4: Simplify right side
    198,826.20x = 39,817,130,997.66
  5. Step 5: Solve for x
    x = 39,817,130,997.66/198,826.20
  6. Step 6: Final answer
    x = 200,260.99

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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.