Home / 120,403.02-166,174.83-68,720.16

Finding the Fourth Proportional to 120,403.02, 166,174.83 and 68,720.16

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Solution

The fourth proportional to 120,403.02, 166,174.83 and 68,720.16 is: 94,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,403.02 : 166,174.83 = 68,720.16 : x
  2. Step 2: Convert to fraction form
    120,403.02/166,174.83 = 68,720.16/x
  3. Step 3: Cross multiply
    120,403.02x = 166,174.83 × 68,720.16
  4. Step 4: Simplify right side
    120,403.02x = 11,419,560,905.57
  5. Step 5: Solve for x
    x = 11,419,560,905.57/120,403.02
  6. Step 6: Final answer
    x = 94,844.47

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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.