Home / 201,778.30-278,320.71-126,195.58

Finding the Fourth Proportional to 201,778.30, 278,320.71 and 126,195.58

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Solution

The fourth proportional to 201,778.30, 278,320.71 and 126,195.58 is: 174,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,778.30 : 278,320.71 = 126,195.58 : x
  2. Step 2: Convert to fraction form
    201,778.30/278,320.71 = 126,195.58/x
  3. Step 3: Cross multiply
    201,778.30x = 278,320.71 × 126,195.58
  4. Step 4: Simplify right side
    201,778.30x = 35,122,843,424.46
  5. Step 5: Solve for x
    x = 35,122,843,424.46/201,778.30
  6. Step 6: Final answer
    x = 174,066.50

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1.5x scale

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.