Home / 201,809.28-278,631-125,442.48

Finding the Fourth Proportional to 201,809.28, 278,631 and 125,442.48

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Solution

The fourth proportional to 201,809.28, 278,631 and 125,442.48 is: 173,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,809.28 : 278,631 = 125,442.48 : x
  2. Step 2: Convert to fraction form
    201,809.28/278,631 = 125,442.48/x
  3. Step 3: Cross multiply
    201,809.28x = 278,631 × 125,442.48
  4. Step 4: Simplify right side
    201,809.28x = 34,952,163,644.88
  5. Step 5: Solve for x
    x = 34,952,163,644.88/201,809.28
  6. Step 6: Final answer
    x = 173,194.04

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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.