Home / 117,619.20-176,198.40-70,732.80

Finding the Fourth Proportional to 117,619.20, 176,198.40 and 70,732.80

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Solution

The fourth proportional to 117,619.20, 176,198.40 and 70,732.80 is: 105,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,619.20 : 176,198.40 = 70,732.80 : x
  2. Step 2: Convert to fraction form
    117,619.20/176,198.40 = 70,732.80/x
  3. Step 3: Cross multiply
    117,619.20x = 176,198.40 × 70,732.80
  4. Step 4: Simplify right side
    117,619.20x = 12,463,006,187.52
  5. Step 5: Solve for x
    x = 12,463,006,187.52/117,619.20
  6. Step 6: Final answer
    x = 105,960.64

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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.