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Finding the Fourth Proportional to 129,851.60, 194,633.40 and 50,939.60

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Solution

The fourth proportional to 129,851.60, 194,633.40 and 50,939.60 is: 76,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,851.60 : 194,633.40 = 50,939.60 : x
  2. Step 2: Convert to fraction form
    129,851.60/194,633.40 = 50,939.60/x
  3. Step 3: Cross multiply
    129,851.60x = 194,633.40 × 50,939.60
  4. Step 4: Simplify right side
    129,851.60x = 9,914,547,542.64
  5. Step 5: Solve for x
    x = 9,914,547,542.64/129,851.60
  6. Step 6: Final answer
    x = 76,352.91

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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.