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Finding the Fourth Proportional to 118,063.80, 177,138.90 and 47,950.20

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Solution

The fourth proportional to 118,063.80, 177,138.90 and 47,950.20 is: 71,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,063.80 : 177,138.90 = 47,950.20 : x
  2. Step 2: Convert to fraction form
    118,063.80/177,138.90 = 47,950.20/x
  3. Step 3: Cross multiply
    118,063.80x = 177,138.90 × 47,950.20
  4. Step 4: Simplify right side
    118,063.80x = 8,493,845,682.78
  5. Step 5: Solve for x
    x = 8,493,845,682.78/118,063.80
  6. Step 6: Final answer
    x = 71,942.85

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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.