Home / 117,218.19-161,760.90-63,504.57

Finding the Fourth Proportional to 117,218.19, 161,760.90 and 63,504.57

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Solution

The fourth proportional to 117,218.19, 161,760.90 and 63,504.57 is: 87,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,218.19 : 161,760.90 = 63,504.57 : x
  2. Step 2: Convert to fraction form
    117,218.19/161,760.90 = 63,504.57/x
  3. Step 3: Cross multiply
    117,218.19x = 161,760.90 × 63,504.57
  4. Step 4: Simplify right side
    117,218.19x = 10,272,556,397.31
  5. Step 5: Solve for x
    x = 10,272,556,397.31/117,218.19
  6. Step 6: Final answer
    x = 87,636.20

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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.