Home / 272,780.38-409,170.60-83,241.75

Finding the Fourth Proportional to 272,780.38, 409,170.60 and 83,241.75

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Solution

The fourth proportional to 272,780.38, 409,170.60 and 83,241.75 is: 124,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,780.38 : 409,170.60 = 83,241.75 : x
  2. Step 2: Convert to fraction form
    272,780.38/409,170.60 = 83,241.75/x
  3. Step 3: Cross multiply
    272,780.38x = 409,170.60 × 83,241.75
  4. Step 4: Simplify right side
    272,780.38x = 34,060,076,792.55
  5. Step 5: Solve for x
    x = 34,060,076,792.55/272,780.38
  6. Step 6: Final answer
    x = 124,862.64

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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.