Home / 201,917.76-278,629.88-115,903.04

Finding the Fourth Proportional to 201,917.76, 278,629.88 and 115,903.04

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Solution

The fourth proportional to 201,917.76, 278,629.88 and 115,903.04 is: 159,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,917.76 : 278,629.88 = 115,903.04 : x
  2. Step 2: Convert to fraction form
    201,917.76/278,629.88 = 115,903.04/x
  3. Step 3: Cross multiply
    201,917.76x = 278,629.88 × 115,903.04
  4. Step 4: Simplify right side
    201,917.76x = 32,294,050,126.84
  5. Step 5: Solve for x
    x = 32,294,050,126.84/201,917.76
  6. Step 6: Final answer
    x = 159,936.65

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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.