Home / 117,033.03-161,505.65-63,317.88

Finding the Fourth Proportional to 117,033.03, 161,505.65 and 63,317.88

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Solution

The fourth proportional to 117,033.03, 161,505.65 and 63,317.88 is: 87,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,033.03 : 161,505.65 = 63,317.88 : x
  2. Step 2: Convert to fraction form
    117,033.03/161,505.65 = 63,317.88/x
  3. Step 3: Cross multiply
    117,033.03x = 161,505.65 × 63,317.88
  4. Step 4: Simplify right side
    117,033.03x = 10,226,195,049.43
  5. Step 5: Solve for x
    x = 10,226,195,049.43/117,033.03
  6. Step 6: Final answer
    x = 87,378.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.