Home / 143,613.24-215,450.92-43,770.80

Finding the Fourth Proportional to 143,613.24, 215,450.92 and 43,770.80

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Solution

The fourth proportional to 143,613.24, 215,450.92 and 43,770.80 is: 65,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.24 : 215,450.92 = 43,770.80 : x
  2. Step 2: Convert to fraction form
    143,613.24/215,450.92 = 43,770.80/x
  3. Step 3: Cross multiply
    143,613.24x = 215,450.92 × 43,770.80
  4. Step 4: Simplify right side
    143,613.24x = 9,430,459,129.14
  5. Step 5: Solve for x
    x = 9,430,459,129.14/143,613.24
  6. Step 6: Final answer
    x = 65,665.67

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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.