Home / 117,891.35-162,702.47-103,221.14

Finding the Fourth Proportional to 117,891.35, 162,702.47 and 103,221.14

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Solution

The fourth proportional to 117,891.35, 162,702.47 and 103,221.14 is: 142,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,891.35 : 162,702.47 = 103,221.14 : x
  2. Step 2: Convert to fraction form
    117,891.35/162,702.47 = 103,221.14/x
  3. Step 3: Cross multiply
    117,891.35x = 162,702.47 × 103,221.14
  4. Step 4: Simplify right side
    117,891.35x = 16,794,333,620.70
  5. Step 5: Solve for x
    x = 16,794,333,620.70/117,891.35
  6. Step 6: Final answer
    x = 142,456.03

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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.