Home / 86,664.20-119,652.18-70,786.76

Finding the Fourth Proportional to 86,664.20, 119,652.18 and 70,786.76

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Solution

The fourth proportional to 86,664.20, 119,652.18 and 70,786.76 is: 97,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.20 : 119,652.18 = 70,786.76 : x
  2. Step 2: Convert to fraction form
    86,664.20/119,652.18 = 70,786.76/x
  3. Step 3: Cross multiply
    86,664.20x = 119,652.18 × 70,786.76
  4. Step 4: Simplify right side
    86,664.20x = 8,469,790,149.14
  5. Step 5: Solve for x
    x = 8,469,790,149.14/86,664.20
  6. Step 6: Final answer
    x = 97,731.13

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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.