Home / 117,619.43-162,279.05-66,624.06

Finding the Fourth Proportional to 117,619.43, 162,279.05 and 66,624.06

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Solution

The fourth proportional to 117,619.43, 162,279.05 and 66,624.06 is: 91,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,619.43 : 162,279.05 = 66,624.06 : x
  2. Step 2: Convert to fraction form
    117,619.43/162,279.05 = 66,624.06/x
  3. Step 3: Cross multiply
    117,619.43x = 162,279.05 × 66,624.06
  4. Step 4: Simplify right side
    117,619.43x = 10,811,689,163.94
  5. Step 5: Solve for x
    x = 10,811,689,163.94/117,619.43
  6. Step 6: Final answer
    x = 91,920.95

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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.