Home / 208,204.18-287,321.72-112,710.80

Finding the Fourth Proportional to 208,204.18, 287,321.72 and 112,710.80

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Solution

The fourth proportional to 208,204.18, 287,321.72 and 112,710.80 is: 155,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,204.18 : 287,321.72 = 112,710.80 : x
  2. Step 2: Convert to fraction form
    208,204.18/287,321.72 = 112,710.80/x
  3. Step 3: Cross multiply
    208,204.18x = 287,321.72 × 112,710.80
  4. Step 4: Simplify right side
    208,204.18x = 32,384,260,918.58
  5. Step 5: Solve for x
    x = 32,384,260,918.58/208,204.18
  6. Step 6: Final answer
    x = 155,540.88

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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.