Home / 143,774.59-198,408.94-83,380.26

Finding the Fourth Proportional to 143,774.59, 198,408.94 and 83,380.26

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Solution

The fourth proportional to 143,774.59, 198,408.94 and 83,380.26 is: 115,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,774.59 : 198,408.94 = 83,380.26 : x
  2. Step 2: Convert to fraction form
    143,774.59/198,408.94 = 83,380.26/x
  3. Step 3: Cross multiply
    143,774.59x = 198,408.94 × 83,380.26
  4. Step 4: Simplify right side
    143,774.59x = 16,543,389,003.52
  5. Step 5: Solve for x
    x = 16,543,389,003.52/143,774.59
  6. Step 6: Final answer
    x = 115,064.76

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1.5x scale

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.