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Finding the Fourth Proportional to 133,377.80, 199,629.30 and 103,634.60

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Solution

The fourth proportional to 133,377.80, 199,629.30 and 103,634.60 is: 155,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,377.80 : 199,629.30 = 103,634.60 : x
  2. Step 2: Convert to fraction form
    133,377.80/199,629.30 = 103,634.60/x
  3. Step 3: Cross multiply
    133,377.80x = 199,629.30 × 103,634.60
  4. Step 4: Simplify right side
    133,377.80x = 20,688,502,653.78
  5. Step 5: Solve for x
    x = 20,688,502,653.78/133,377.80
  6. Step 6: Final answer
    x = 155,112.04

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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.