Home / 125,388.18-187,961.31-42,236.82

Finding the Fourth Proportional to 125,388.18, 187,961.31 and 42,236.82

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Solution

The fourth proportional to 125,388.18, 187,961.31 and 42,236.82 is: 63,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388.18 : 187,961.31 = 42,236.82 : x
  2. Step 2: Convert to fraction form
    125,388.18/187,961.31 = 42,236.82/x
  3. Step 3: Cross multiply
    125,388.18x = 187,961.31 × 42,236.82
  4. Step 4: Simplify right side
    125,388.18x = 7,938,888,017.43
  5. Step 5: Solve for x
    x = 7,938,888,017.43/125,388.18
  6. Step 6: Final answer
    x = 63,314.48

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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.