Home / 117,191.37-161,753.03-66,919.53

Finding the Fourth Proportional to 117,191.37, 161,753.03 and 66,919.53

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Solution

The fourth proportional to 117,191.37, 161,753.03 and 66,919.53 is: 92,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,191.37 : 161,753.03 = 66,919.53 : x
  2. Step 2: Convert to fraction form
    117,191.37/161,753.03 = 66,919.53/x
  3. Step 3: Cross multiply
    117,191.37x = 161,753.03 × 66,919.53
  4. Step 4: Simplify right side
    117,191.37x = 10,824,436,409.08
  5. Step 5: Solve for x
    x = 10,824,436,409.08/117,191.37
  6. Step 6: Final answer
    x = 92,365.47

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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.