Home / 156,286.56-215,674.74-84,666.36

Finding the Fourth Proportional to 156,286.56, 215,674.74 and 84,666.36

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Solution

The fourth proportional to 156,286.56, 215,674.74 and 84,666.36 is: 116,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,286.56 : 215,674.74 = 84,666.36 : x
  2. Step 2: Convert to fraction form
    156,286.56/215,674.74 = 84,666.36/x
  3. Step 3: Cross multiply
    156,286.56x = 215,674.74 × 84,666.36
  4. Step 4: Simplify right side
    156,286.56x = 18,260,395,179.75
  5. Step 5: Solve for x
    x = 18,260,395,179.75/156,286.56
  6. Step 6: Final answer
    x = 116,839.19

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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.