Home / 117,422.09-162,004.11-66,429.89

Finding the Fourth Proportional to 117,422.09, 162,004.11 and 66,429.89

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Solution

The fourth proportional to 117,422.09, 162,004.11 and 66,429.89 is: 91,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,422.09 : 162,004.11 = 66,429.89 : x
  2. Step 2: Convert to fraction form
    117,422.09/162,004.11 = 66,429.89/x
  3. Step 3: Cross multiply
    117,422.09x = 162,004.11 × 66,429.89
  4. Step 4: Simplify right side
    117,422.09x = 10,761,915,206.85
  5. Step 5: Solve for x
    x = 10,761,915,206.85/117,422.09
  6. Step 6: Final answer
    x = 91,651.54

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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.