Home / 138,553.06-191,216.93-84,100.93

Finding the Fourth Proportional to 138,553.06, 191,216.93 and 84,100.93

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Solution

The fourth proportional to 138,553.06, 191,216.93 and 84,100.93 is: 116,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,553.06 : 191,216.93 = 84,100.93 : x
  2. Step 2: Convert to fraction form
    138,553.06/191,216.93 = 84,100.93/x
  3. Step 3: Cross multiply
    138,553.06x = 191,216.93 × 84,100.93
  4. Step 4: Simplify right side
    138,553.06x = 16,081,522,058.33
  5. Step 5: Solve for x
    x = 16,081,522,058.33/138,553.06
  6. Step 6: Final answer
    x = 116,067.61

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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.