Home / 201,938.20-278,673.42-111,294.25

Finding the Fourth Proportional to 201,938.20, 278,673.42 and 111,294.25

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Solution

The fourth proportional to 201,938.20, 278,673.42 and 111,294.25 is: 153,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,938.20 : 278,673.42 = 111,294.25 : x
  2. Step 2: Convert to fraction form
    201,938.20/278,673.42 = 111,294.25/x
  3. Step 3: Cross multiply
    201,938.20x = 278,673.42 × 111,294.25
  4. Step 4: Simplify right side
    201,938.20x = 31,014,749,273.84
  5. Step 5: Solve for x
    x = 31,014,749,273.84/201,938.20
  6. Step 6: Final answer
    x = 153,585.35

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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.