Home / 201,963.49-278,697.03-111,320.17

Finding the Fourth Proportional to 201,963.49, 278,697.03 and 111,320.17

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Solution

The fourth proportional to 201,963.49, 278,697.03 and 111,320.17 is: 153,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,963.49 : 278,697.03 = 111,320.17 : x
  2. Step 2: Convert to fraction form
    201,963.49/278,697.03 = 111,320.17/x
  3. Step 3: Cross multiply
    201,963.49x = 278,697.03 × 111,320.17
  4. Step 4: Simplify right side
    201,963.49x = 31,024,600,758.10
  5. Step 5: Solve for x
    x = 31,024,600,758.10/201,963.49
  6. Step 6: Final answer
    x = 153,614.90

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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.