Home / 125,203.98-172,727.19-82,821.66

Finding the Fourth Proportional to 125,203.98, 172,727.19 and 82,821.66

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Solution

The fourth proportional to 125,203.98, 172,727.19 and 82,821.66 is: 114,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,203.98 : 172,727.19 = 82,821.66 : x
  2. Step 2: Convert to fraction form
    125,203.98/172,727.19 = 82,821.66/x
  3. Step 3: Cross multiply
    125,203.98x = 172,727.19 × 82,821.66
  4. Step 4: Simplify right side
    125,203.98x = 14,305,552,602.94
  5. Step 5: Solve for x
    x = 14,305,552,602.94/125,203.98
  6. Step 6: Final answer
    x = 114,257.97

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1.5x scale

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.