Home / 117,221.13-161,765.22-63,506.52

Finding the Fourth Proportional to 117,221.13, 161,765.22 and 63,506.52

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Solution

The fourth proportional to 117,221.13, 161,765.22 and 63,506.52 is: 87,639.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221.13 : 161,765.22 = 63,506.52 : x
  2. Step 2: Convert to fraction form
    117,221.13/161,765.22 = 63,506.52/x
  3. Step 3: Cross multiply
    117,221.13x = 161,765.22 × 63,506.52
  4. Step 4: Simplify right side
    117,221.13x = 10,273,146,179.23
  5. Step 5: Solve for x
    x = 10,273,146,179.23/117,221.13
  6. Step 6: Final answer
    x = 87,639.03

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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.