Home / 208,587.85-287,849.49-117,961.61

Finding the Fourth Proportional to 208,587.85, 287,849.49 and 117,961.61

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Solution

The fourth proportional to 208,587.85, 287,849.49 and 117,961.61 is: 162,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,587.85 : 287,849.49 = 117,961.61 : x
  2. Step 2: Convert to fraction form
    208,587.85/287,849.49 = 117,961.61/x
  3. Step 3: Cross multiply
    208,587.85x = 287,849.49 × 117,961.61
  4. Step 4: Simplify right side
    208,587.85x = 33,955,189,360.62
  5. Step 5: Solve for x
    x = 33,955,189,360.62/208,587.85
  6. Step 6: Final answer
    x = 162,786.04

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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.