Home / 208,494.57-287,705.19-117,845.85

Finding the Fourth Proportional to 208,494.57, 287,705.19 and 117,845.85

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Solution

The fourth proportional to 208,494.57, 287,705.19 and 117,845.85 is: 162,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,494.57 : 287,705.19 = 117,845.85 : x
  2. Step 2: Convert to fraction form
    208,494.57/287,705.19 = 117,845.85/x
  3. Step 3: Cross multiply
    208,494.57x = 287,705.19 × 117,845.85
  4. Step 4: Simplify right side
    208,494.57x = 33,904,862,664.96
  5. Step 5: Solve for x
    x = 33,904,862,664.96/208,494.57
  6. Step 6: Final answer
    x = 162,617.49

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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.