Home / 193,619.28-267,078.75-121,874.70

Finding the Fourth Proportional to 193,619.28, 267,078.75 and 121,874.70

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Solution

The fourth proportional to 193,619.28, 267,078.75 and 121,874.70 is: 168,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,619.28 : 267,078.75 = 121,874.70 : x
  2. Step 2: Convert to fraction form
    193,619.28/267,078.75 = 121,874.70/x
  3. Step 3: Cross multiply
    193,619.28x = 267,078.75 × 121,874.70
  4. Step 4: Simplify right side
    193,619.28x = 32,550,142,532.63
  5. Step 5: Solve for x
    x = 32,550,142,532.63/193,619.28
  6. Step 6: Final answer
    x = 168,114.16

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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.