Home / 201,780.30-278,323.46-126,197.58

Finding the Fourth Proportional to 201,780.30, 278,323.46 and 126,197.58

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Solution

The fourth proportional to 201,780.30, 278,323.46 and 126,197.58 is: 174,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,780.30 : 278,323.46 = 126,197.58 : x
  2. Step 2: Convert to fraction form
    201,780.30/278,323.46 = 126,197.58/x
  3. Step 3: Cross multiply
    201,780.30x = 278,323.46 × 126,197.58
  4. Step 4: Simplify right side
    201,780.30x = 35,123,747,109.23
  5. Step 5: Solve for x
    x = 35,123,747,109.23/201,780.30
  6. Step 6: Final answer
    x = 174,069.26

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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.