Home / 156,086.68-215,399.61-84,466.70

Finding the Fourth Proportional to 156,086.68, 215,399.61 and 84,466.70

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Solution

The fourth proportional to 156,086.68, 215,399.61 and 84,466.70 is: 116,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,086.68 : 215,399.61 = 84,466.70 : x
  2. Step 2: Convert to fraction form
    156,086.68/215,399.61 = 84,466.70/x
  3. Step 3: Cross multiply
    156,086.68x = 215,399.61 × 84,466.70
  4. Step 4: Simplify right side
    156,086.68x = 18,194,093,160.99
  5. Step 5: Solve for x
    x = 18,194,093,160.99/156,086.68
  6. Step 6: Final answer
    x = 116,564.04

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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.