Home / 125,208.40-172,786.60-68,619.64

Finding the Fourth Proportional to 125,208.40, 172,786.60 and 68,619.64

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Solution

The fourth proportional to 125,208.40, 172,786.60 and 68,619.64 is: 94,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.40 : 172,786.60 = 68,619.64 : x
  2. Step 2: Convert to fraction form
    125,208.40/172,786.60 = 68,619.64/x
  3. Step 3: Cross multiply
    125,208.40x = 172,786.60 × 68,619.64
  4. Step 4: Simplify right side
    125,208.40x = 11,856,554,288.82
  5. Step 5: Solve for x
    x = 11,856,554,288.82/125,208.40
  6. Step 6: Final answer
    x = 94,694.56

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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.