Home / 201,960.87-278,707.77-111,320.04

Finding the Fourth Proportional to 201,960.87, 278,707.77 and 111,320.04

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Solution

The fourth proportional to 201,960.87, 278,707.77 and 111,320.04 is: 153,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,960.87 : 278,707.77 = 111,320.04 : x
  2. Step 2: Convert to fraction form
    201,960.87/278,707.77 = 111,320.04/x
  3. Step 3: Cross multiply
    201,960.87x = 278,707.77 × 111,320.04
  4. Step 4: Simplify right side
    201,960.87x = 31,025,760,104.71
  5. Step 5: Solve for x
    x = 31,025,760,104.71/201,960.87
  6. Step 6: Final answer
    x = 153,622.63

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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.