Home / 201,748.88-278,403.38-111,112.68

Finding the Fourth Proportional to 201,748.88, 278,403.38 and 111,112.68

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Solution

The fourth proportional to 201,748.88, 278,403.38 and 111,112.68 is: 153,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,748.88 : 278,403.38 = 111,112.68 : x
  2. Step 2: Convert to fraction form
    201,748.88/278,403.38 = 111,112.68/x
  3. Step 3: Cross multiply
    201,748.88x = 278,403.38 × 111,112.68
  4. Step 4: Simplify right side
    201,748.88x = 30,934,145,672.86
  5. Step 5: Solve for x
    x = 30,934,145,672.86/201,748.88
  6. Step 6: Final answer
    x = 153,329.95

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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.