Home / 117,319.46-161,910.20-66,342.92

Finding the Fourth Proportional to 117,319.46, 161,910.20 and 66,342.92

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Solution

The fourth proportional to 117,319.46, 161,910.20 and 66,342.92 is: 91,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,319.46 : 161,910.20 = 66,342.92 : x
  2. Step 2: Convert to fraction form
    117,319.46/161,910.20 = 66,342.92/x
  3. Step 3: Cross multiply
    117,319.46x = 161,910.20 × 66,342.92
  4. Step 4: Simplify right side
    117,319.46x = 10,741,594,802.09
  5. Step 5: Solve for x
    x = 10,741,594,802.09/117,319.46
  6. Step 6: Final answer
    x = 91,558.51

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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.