Home / 143,685.41-198,285.75-83,291.03

Finding the Fourth Proportional to 143,685.41, 198,285.75 and 83,291.03

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Solution

The fourth proportional to 143,685.41, 198,285.75 and 83,291.03 is: 114,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,685.41 : 198,285.75 = 83,291.03 : x
  2. Step 2: Convert to fraction form
    143,685.41/198,285.75 = 83,291.03/x
  3. Step 3: Cross multiply
    143,685.41x = 198,285.75 × 83,291.03
  4. Step 4: Simplify right side
    143,685.41x = 16,515,424,847.54
  5. Step 5: Solve for x
    x = 16,515,424,847.54/143,685.41
  6. Step 6: Final answer
    x = 114,941.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.