Home / 154,997.96-213,882.41-86,999.35

Finding the Fourth Proportional to 154,997.96, 213,882.41 and 86,999.35

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Solution

The fourth proportional to 154,997.96, 213,882.41 and 86,999.35 is: 120,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,997.96 : 213,882.41 = 86,999.35 : x
  2. Step 2: Convert to fraction form
    154,997.96/213,882.41 = 86,999.35/x
  3. Step 3: Cross multiply
    154,997.96x = 213,882.41 × 86,999.35
  4. Step 4: Simplify right side
    154,997.96x = 18,607,629,676.73
  5. Step 5: Solve for x
    x = 18,607,629,676.73/154,997.96
  6. Step 6: Final answer
    x = 120,050.81

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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.