Home / 120,404.02-166,176.21-68,721.16

Finding the Fourth Proportional to 120,404.02, 166,176.21 and 68,721.16

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Solution

The fourth proportional to 120,404.02, 166,176.21 and 68,721.16 is: 94,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,404.02 : 166,176.21 = 68,721.16 : x
  2. Step 2: Convert to fraction form
    120,404.02/166,176.21 = 68,721.16/x
  3. Step 3: Cross multiply
    120,404.02x = 166,176.21 × 68,721.16
  4. Step 4: Simplify right side
    120,404.02x = 11,419,821,915.60
  5. Step 5: Solve for x
    x = 11,419,821,915.60/120,404.02
  6. Step 6: Final answer
    x = 94,845.85

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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.