Home / 87,188.20-119,942.18-76,384.44

Finding the Fourth Proportional to 87,188.20, 119,942.18 and 76,384.44

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Solution

The fourth proportional to 87,188.20, 119,942.18 and 76,384.44 is: 105,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,188.20 : 119,942.18 = 76,384.44 : x
  2. Step 2: Convert to fraction form
    87,188.20/119,942.18 = 76,384.44/x
  3. Step 3: Cross multiply
    87,188.20x = 119,942.18 × 76,384.44
  4. Step 4: Simplify right side
    87,188.20x = 9,161,716,251.68
  5. Step 5: Solve for x
    x = 9,161,716,251.68/87,188.20
  6. Step 6: Final answer
    x = 105,079.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.