Home / 143,840.44-215,610.96-80,567.80

Finding the Fourth Proportional to 143,840.44, 215,610.96 and 80,567.80

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Solution

The fourth proportional to 143,840.44, 215,610.96 and 80,567.80 is: 120,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,840.44 : 215,610.96 = 80,567.80 : x
  2. Step 2: Convert to fraction form
    143,840.44/215,610.96 = 80,567.80/x
  3. Step 3: Cross multiply
    143,840.44x = 215,610.96 × 80,567.80
  4. Step 4: Simplify right side
    143,840.44x = 17,371,300,466.19
  5. Step 5: Solve for x
    x = 17,371,300,466.19/143,840.44
  6. Step 6: Final answer
    x = 120,767.85

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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.