Home / 166,853.42-250,168.92-86,694.40

Finding the Fourth Proportional to 166,853.42, 250,168.92 and 86,694.40

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Solution

The fourth proportional to 166,853.42, 250,168.92 and 86,694.40 is: 129,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,853.42 : 250,168.92 = 86,694.40 : x
  2. Step 2: Convert to fraction form
    166,853.42/250,168.92 = 86,694.40/x
  3. Step 3: Cross multiply
    166,853.42x = 250,168.92 × 86,694.40
  4. Step 4: Simplify right side
    166,853.42x = 21,688,243,167.20
  5. Step 5: Solve for x
    x = 21,688,243,167.20/166,853.42
  6. Step 6: Final answer
    x = 129,983.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.