Home / 143,606.76-215,410.26-68,709.24

Finding the Fourth Proportional to 143,606.76, 215,410.26 and 68,709.24

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Solution

The fourth proportional to 143,606.76, 215,410.26 and 68,709.24 is: 103,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,606.76 : 215,410.26 = 68,709.24 : x
  2. Step 2: Convert to fraction form
    143,606.76/215,410.26 = 68,709.24/x
  3. Step 3: Cross multiply
    143,606.76x = 215,410.26 × 68,709.24
  4. Step 4: Simplify right side
    143,606.76x = 14,800,675,252.80
  5. Step 5: Solve for x
    x = 14,800,675,252.80/143,606.76
  6. Step 6: Final answer
    x = 103,063.92

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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.