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Finding the Fourth Proportional to 188,891.80, 283,148.36 and 87,760.90

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Solution

The fourth proportional to 188,891.80, 283,148.36 and 87,760.90 is: 131,553.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,891.80 : 283,148.36 = 87,760.90 : x
  2. Step 2: Convert to fraction form
    188,891.80/283,148.36 = 87,760.90/x
  3. Step 3: Cross multiply
    188,891.80x = 283,148.36 × 87,760.90
  4. Step 4: Simplify right side
    188,891.80x = 24,849,355,151.36
  5. Step 5: Solve for x
    x = 24,849,355,151.36/188,891.80
  6. Step 6: Final answer
    x = 131,553.38

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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.