Home / 208,587.88-287,849.58-117,961.66

Finding the Fourth Proportional to 208,587.88, 287,849.58 and 117,961.66

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Solution

The fourth proportional to 208,587.88, 287,849.58 and 117,961.66 is: 162,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,587.88 : 287,849.58 = 117,961.66 : x
  2. Step 2: Convert to fraction form
    208,587.88/287,849.58 = 117,961.66/x
  3. Step 3: Cross multiply
    208,587.88x = 287,849.58 × 117,961.66
  4. Step 4: Simplify right side
    208,587.88x = 33,955,214,287.10
  5. Step 5: Solve for x
    x = 33,955,214,287.10/208,587.88
  6. Step 6: Final answer
    x = 162,786.13

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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.