Home / 143,245.91-214,665.11-105,509.23

Finding the Fourth Proportional to 143,245.91, 214,665.11 and 105,509.23

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Solution

The fourth proportional to 143,245.91, 214,665.11 and 105,509.23 is: 158,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,245.91 : 214,665.11 = 105,509.23 : x
  2. Step 2: Convert to fraction form
    143,245.91/214,665.11 = 105,509.23/x
  3. Step 3: Cross multiply
    143,245.91x = 214,665.11 × 105,509.23
  4. Step 4: Simplify right side
    143,245.91x = 22,649,148,863.09
  5. Step 5: Solve for x
    x = 22,649,148,863.09/143,245.91
  6. Step 6: Final answer
    x = 158,113.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.