Home / 117,140.14-175,708.68-28,394.43

Finding the Fourth Proportional to 117,140.14, 175,708.68 and 28,394.43

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Solution

The fourth proportional to 117,140.14, 175,708.68 and 28,394.43 is: 42,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,140.14 : 175,708.68 = 28,394.43 : x
  2. Step 2: Convert to fraction form
    117,140.14/175,708.68 = 28,394.43/x
  3. Step 3: Cross multiply
    117,140.14x = 175,708.68 × 28,394.43
  4. Step 4: Simplify right side
    117,140.14x = 4,989,147,814.65
  5. Step 5: Solve for x
    x = 4,989,147,814.65/117,140.14
  6. Step 6: Final answer
    x = 42,591.27

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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.