Home / 117,147.22-161,687.01-79,433.62

Finding the Fourth Proportional to 117,147.22, 161,687.01 and 79,433.62

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Solution

The fourth proportional to 117,147.22, 161,687.01 and 79,433.62 is: 109,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,147.22 : 161,687.01 = 79,433.62 : x
  2. Step 2: Convert to fraction form
    117,147.22/161,687.01 = 79,433.62/x
  3. Step 3: Cross multiply
    117,147.22x = 161,687.01 × 79,433.62
  4. Step 4: Simplify right side
    117,147.22x = 12,843,384,511.28
  5. Step 5: Solve for x
    x = 12,843,384,511.28/117,147.22
  6. Step 6: Final answer
    x = 109,634.57

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1.5x scale

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.