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Finding the Fourth Proportional to 121,954.78, 182,880.33 and 75,195.10

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Solution

The fourth proportional to 121,954.78, 182,880.33 and 75,195.10 is: 112,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,954.78 : 182,880.33 = 75,195.10 : x
  2. Step 2: Convert to fraction form
    121,954.78/182,880.33 = 75,195.10/x
  3. Step 3: Cross multiply
    121,954.78x = 182,880.33 × 75,195.10
  4. Step 4: Simplify right side
    121,954.78x = 13,751,704,702.38
  5. Step 5: Solve for x
    x = 13,751,704,702.38/121,954.78
  6. Step 6: Final answer
    x = 112,760.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.