Home / 159,183.06-219,670.27-87,558.81

Finding the Fourth Proportional to 159,183.06, 219,670.27 and 87,558.81

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Solution

The fourth proportional to 159,183.06, 219,670.27 and 87,558.81 is: 120,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,183.06 : 219,670.27 = 87,558.81 : x
  2. Step 2: Convert to fraction form
    159,183.06/219,670.27 = 87,558.81/x
  3. Step 3: Cross multiply
    159,183.06x = 219,670.27 × 87,558.81
  4. Step 4: Simplify right side
    159,183.06x = 19,234,067,433.58
  5. Step 5: Solve for x
    x = 19,234,067,433.58/159,183.06
  6. Step 6: Final answer
    x = 120,829.86

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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.