Home / 143,615.24-215,453.92-43,772.80

Finding the Fourth Proportional to 143,615.24, 215,453.92 and 43,772.80

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Solution

The fourth proportional to 143,615.24, 215,453.92 and 43,772.80 is: 65,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,615.24 : 215,453.92 = 43,772.80 : x
  2. Step 2: Convert to fraction form
    143,615.24/215,453.92 = 43,772.80/x
  3. Step 3: Cross multiply
    143,615.24x = 215,453.92 × 43,772.80
  4. Step 4: Simplify right side
    143,615.24x = 9,431,021,349.38
  5. Step 5: Solve for x
    x = 9,431,021,349.38/143,615.24
  6. Step 6: Final answer
    x = 65,668.67

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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.