Home / 117,144.24-161,538.22-100,204.56

Finding the Fourth Proportional to 117,144.24, 161,538.22 and 100,204.56

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Solution

The fourth proportional to 117,144.24, 161,538.22 and 100,204.56 is: 138,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,144.24 : 161,538.22 = 100,204.56 : x
  2. Step 2: Convert to fraction form
    117,144.24/161,538.22 = 100,204.56/x
  3. Step 3: Cross multiply
    117,144.24x = 161,538.22 × 100,204.56
  4. Step 4: Simplify right side
    117,144.24x = 16,186,866,258.28
  5. Step 5: Solve for x
    x = 16,186,866,258.28/117,144.24
  6. Step 6: Final answer
    x = 138,178.93

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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.