Home / 201,770.55-278,432.46-111,108.81

Finding the Fourth Proportional to 201,770.55, 278,432.46 and 111,108.81

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Solution

The fourth proportional to 201,770.55, 278,432.46 and 111,108.81 is: 153,324.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,770.55 : 278,432.46 = 111,108.81 : x
  2. Step 2: Convert to fraction form
    201,770.55/278,432.46 = 111,108.81/x
  3. Step 3: Cross multiply
    201,770.55x = 278,432.46 × 111,108.81
  4. Step 4: Simplify right side
    201,770.55x = 30,936,299,295.97
  5. Step 5: Solve for x
    x = 30,936,299,295.97/201,770.55
  6. Step 6: Final answer
    x = 153,324.16

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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.