Home / 125,181.64-187,772.60-31,687.39

Finding the Fourth Proportional to 125,181.64, 187,772.60 and 31,687.39

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Solution

The fourth proportional to 125,181.64, 187,772.60 and 31,687.39 is: 47,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,181.64 : 187,772.60 = 31,687.39 : x
  2. Step 2: Convert to fraction form
    125,181.64/187,772.60 = 31,687.39/x
  3. Step 3: Cross multiply
    125,181.64x = 187,772.60 × 31,687.39
  4. Step 4: Simplify right side
    125,181.64x = 5,950,023,607.51
  5. Step 5: Solve for x
    x = 5,950,023,607.51/125,181.64
  6. Step 6: Final answer
    x = 47,531.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.