Home / 117,933.20-176,640.60-71,104.40

Finding the Fourth Proportional to 117,933.20, 176,640.60 and 71,104.40

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Solution

The fourth proportional to 117,933.20, 176,640.60 and 71,104.40 is: 106,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,933.20 : 176,640.60 = 71,104.40 : x
  2. Step 2: Convert to fraction form
    117,933.20/176,640.60 = 71,104.40/x
  3. Step 3: Cross multiply
    117,933.20x = 176,640.60 × 71,104.40
  4. Step 4: Simplify right side
    117,933.20x = 12,559,923,878.64
  5. Step 5: Solve for x
    x = 12,559,923,878.64/117,933.20
  6. Step 6: Final answer
    x = 106,500.32

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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.