Home / 208,587.60-287,849.15-117,961.36

Finding the Fourth Proportional to 208,587.60, 287,849.15 and 117,961.36

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Solution

The fourth proportional to 208,587.60, 287,849.15 and 117,961.36 is: 162,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,587.60 : 287,849.15 = 117,961.36 : x
  2. Step 2: Convert to fraction form
    208,587.60/287,849.15 = 117,961.36/x
  3. Step 3: Cross multiply
    208,587.60x = 287,849.15 × 117,961.36
  4. Step 4: Simplify right side
    208,587.60x = 33,955,076,489.22
  5. Step 5: Solve for x
    x = 33,955,076,489.22/208,587.60
  6. Step 6: Final answer
    x = 162,785.69

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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.