Home / 117,147.04-161,665.68-66,850.72

Finding the Fourth Proportional to 117,147.04, 161,665.68 and 66,850.72

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Solution

The fourth proportional to 117,147.04, 161,665.68 and 66,850.72 is: 92,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,147.04 : 161,665.68 = 66,850.72 : x
  2. Step 2: Convert to fraction form
    117,147.04/161,665.68 = 66,850.72/x
  3. Step 3: Cross multiply
    117,147.04x = 161,665.68 × 66,850.72
  4. Step 4: Simplify right side
    117,147.04x = 10,807,467,107.29
  5. Step 5: Solve for x
    x = 10,807,467,107.29/117,147.04
  6. Step 6: Final answer
    x = 92,255.57

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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.