Home / 145,110.44-200,241.43-81,435.94

Finding the Fourth Proportional to 145,110.44, 200,241.43 and 81,435.94

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Solution

The fourth proportional to 145,110.44, 200,241.43 and 81,435.94 is: 112,375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.44 : 200,241.43 = 81,435.94 : x
  2. Step 2: Convert to fraction form
    145,110.44/200,241.43 = 81,435.94/x
  3. Step 3: Cross multiply
    145,110.44x = 200,241.43 × 81,435.94
  4. Step 4: Simplify right side
    145,110.44x = 16,306,848,374.80
  5. Step 5: Solve for x
    x = 16,306,848,374.80/145,110.44
  6. Step 6: Final answer
    x = 112,375.43

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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.