Home / 149,760.41-206,670.38-81,777.87

Finding the Fourth Proportional to 149,760.41, 206,670.38 and 81,777.87

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Solution

The fourth proportional to 149,760.41, 206,670.38 and 81,777.87 is: 112,854.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,760.41 : 206,670.38 = 81,777.87 : x
  2. Step 2: Convert to fraction form
    149,760.41/206,670.38 = 81,777.87/x
  3. Step 3: Cross multiply
    149,760.41x = 206,670.38 × 81,777.87
  4. Step 4: Simplify right side
    149,760.41x = 16,901,063,059.60
  5. Step 5: Solve for x
    x = 16,901,063,059.60/149,760.41
  6. Step 6: Final answer
    x = 112,854.02

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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.