Home / 117,217.70-161,760.21-63,504.06

Finding the Fourth Proportional to 117,217.70, 161,760.21 and 63,504.06

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Solution

The fourth proportional to 117,217.70, 161,760.21 and 63,504.06 is: 87,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,217.70 : 161,760.21 = 63,504.06 : x
  2. Step 2: Convert to fraction form
    117,217.70/161,760.21 = 63,504.06/x
  3. Step 3: Cross multiply
    117,217.70x = 161,760.21 × 63,504.06
  4. Step 4: Simplify right side
    117,217.70x = 10,272,430,081.45
  5. Step 5: Solve for x
    x = 10,272,430,081.45/117,217.70
  6. Step 6: Final answer
    x = 87,635.49

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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.