Home / 143,545.45-215,099.85-68,562.34

Finding the Fourth Proportional to 143,545.45, 215,099.85 and 68,562.34

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Solution

The fourth proportional to 143,545.45, 215,099.85 and 68,562.34 is: 102,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,545.45 : 215,099.85 = 68,562.34 : x
  2. Step 2: Convert to fraction form
    143,545.45/215,099.85 = 68,562.34/x
  3. Step 3: Cross multiply
    143,545.45x = 215,099.85 × 68,562.34
  4. Step 4: Simplify right side
    143,545.45x = 14,747,749,049.65
  5. Step 5: Solve for x
    x = 14,747,749,049.65/143,545.45
  6. Step 6: Final answer
    x = 102,739.23

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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.