Home / 100,376.82-138,521.88-60,092.28

Finding the Fourth Proportional to 100,376.82, 138,521.88 and 60,092.28

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Solution

The fourth proportional to 100,376.82, 138,521.88 and 60,092.28 is: 82,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,376.82 : 138,521.88 = 60,092.28 : x
  2. Step 2: Convert to fraction form
    100,376.82/138,521.88 = 60,092.28/x
  3. Step 3: Cross multiply
    100,376.82x = 138,521.88 × 60,092.28
  4. Step 4: Simplify right side
    100,376.82x = 8,324,095,599.09
  5. Step 5: Solve for x
    x = 8,324,095,599.09/100,376.82
  6. Step 6: Final answer
    x = 82,928.46

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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.