Home / 117,311.52-161,850.96-66,317.76

Finding the Fourth Proportional to 117,311.52, 161,850.96 and 66,317.76

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Solution

The fourth proportional to 117,311.52, 161,850.96 and 66,317.76 is: 91,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,311.52 : 161,850.96 = 66,317.76 : x
  2. Step 2: Convert to fraction form
    117,311.52/161,850.96 = 66,317.76/x
  3. Step 3: Cross multiply
    117,311.52x = 161,850.96 × 66,317.76
  4. Step 4: Simplify right side
    117,311.52x = 10,733,593,121.05
  5. Step 5: Solve for x
    x = 10,733,593,121.05/117,311.52
  6. Step 6: Final answer
    x = 91,496.50

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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.