Home / 156,107.45-215,428.92-84,487.46

Finding the Fourth Proportional to 156,107.45, 215,428.92 and 84,487.46

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Solution

The fourth proportional to 156,107.45, 215,428.92 and 84,487.46 is: 116,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,107.45 : 215,428.92 = 84,487.46 : x
  2. Step 2: Convert to fraction form
    156,107.45/215,428.92 = 84,487.46/x
  3. Step 3: Cross multiply
    156,107.45x = 215,428.92 × 84,487.46
  4. Step 4: Simplify right side
    156,107.45x = 18,201,040,867.37
  5. Step 5: Solve for x
    x = 18,201,040,867.37/156,107.45
  6. Step 6: Final answer
    x = 116,593.03

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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.