Home / 208,468.15-287,716.91-131,994.36

Finding the Fourth Proportional to 208,468.15, 287,716.91 and 131,994.36

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Solution

The fourth proportional to 208,468.15, 287,716.91 and 131,994.36 is: 182,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,468.15 : 287,716.91 = 131,994.36 : x
  2. Step 2: Convert to fraction form
    208,468.15/287,716.91 = 131,994.36/x
  3. Step 3: Cross multiply
    208,468.15x = 287,716.91 × 131,994.36
  4. Step 4: Simplify right side
    208,468.15x = 37,977,008,736.66
  5. Step 5: Solve for x
    x = 37,977,008,736.66/208,468.15
  6. Step 6: Final answer
    x = 182,171.75

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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.