Home / 117,912.20-176,609.10-71,083.40

Finding the Fourth Proportional to 117,912.20, 176,609.10 and 71,083.40

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Solution

The fourth proportional to 117,912.20, 176,609.10 and 71,083.40 is: 106,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,912.20 : 176,609.10 = 71,083.40 : x
  2. Step 2: Convert to fraction form
    117,912.20/176,609.10 = 71,083.40/x
  3. Step 3: Cross multiply
    117,912.20x = 176,609.10 × 71,083.40
  4. Step 4: Simplify right side
    117,912.20x = 12,553,975,298.94
  5. Step 5: Solve for x
    x = 12,553,975,298.94/117,912.20
  6. Step 6: Final answer
    x = 106,468.84

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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.