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Finding the Fourth Proportional to 148,659.41, 205,151.49 and 80,676.98

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Solution

The fourth proportional to 148,659.41, 205,151.49 and 80,676.98 is: 111,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,659.41 : 205,151.49 = 80,676.98 : x
  2. Step 2: Convert to fraction form
    148,659.41/205,151.49 = 80,676.98/x
  3. Step 3: Cross multiply
    148,659.41x = 205,151.49 × 80,676.98
  4. Step 4: Simplify right side
    148,659.41x = 16,551,001,629.94
  5. Step 5: Solve for x
    x = 16,551,001,629.94/148,659.41
  6. Step 6: Final answer
    x = 111,335.04

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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.