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Finding the Fourth Proportional to 137,404.69, 206,107.50 and 48,660.79

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Solution

The fourth proportional to 137,404.69, 206,107.50 and 48,660.79 is: 72,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,404.69 : 206,107.50 = 48,660.79 : x
  2. Step 2: Convert to fraction form
    137,404.69/206,107.50 = 48,660.79/x
  3. Step 3: Cross multiply
    137,404.69x = 206,107.50 × 48,660.79
  4. Step 4: Simplify right side
    137,404.69x = 10,029,353,138.00
  5. Step 5: Solve for x
    x = 10,029,353,138.00/137,404.69
  6. Step 6: Final answer
    x = 72,991.35

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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.