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Finding the Fourth Proportional to 137,441.80, 206,097.72 and 53,241.40

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Solution

The fourth proportional to 137,441.80, 206,097.72 and 53,241.40 is: 79,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,441.80 : 206,097.72 = 53,241.40 : x
  2. Step 2: Convert to fraction form
    137,441.80/206,097.72 = 53,241.40/x
  3. Step 3: Cross multiply
    137,441.80x = 206,097.72 × 53,241.40
  4. Step 4: Simplify right side
    137,441.80x = 10,972,931,149.61
  5. Step 5: Solve for x
    x = 10,972,931,149.61/137,441.80
  6. Step 6: Final answer
    x = 79,836.93

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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.