Home / 117,320.46-161,911.58-66,343.92

Finding the Fourth Proportional to 117,320.46, 161,911.58 and 66,343.92

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Solution

The fourth proportional to 117,320.46, 161,911.58 and 66,343.92 is: 91,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,320.46 : 161,911.58 = 66,343.92 : x
  2. Step 2: Convert to fraction form
    117,320.46/161,911.58 = 66,343.92/x
  3. Step 3: Cross multiply
    117,320.46x = 161,911.58 × 66,343.92
  4. Step 4: Simplify right side
    117,320.46x = 10,741,848,910.59
  5. Step 5: Solve for x
    x = 10,741,848,910.59/117,320.46
  6. Step 6: Final answer
    x = 91,559.89

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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.