Home / 125,208.84-172,789.56-68,619

Finding the Fourth Proportional to 125,208.84, 172,789.56 and 68,619

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Solution

The fourth proportional to 125,208.84, 172,789.56 and 68,619 is: 94,694.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.84 : 172,789.56 = 68,619 : x
  2. Step 2: Convert to fraction form
    125,208.84/172,789.56 = 68,619/x
  3. Step 3: Cross multiply
    125,208.84x = 172,789.56 × 68,619
  4. Step 4: Simplify right side
    125,208.84x = 11,856,646,817.64
  5. Step 5: Solve for x
    x = 11,856,646,817.64/125,208.84
  6. Step 6: Final answer
    x = 94,694.97

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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.