Home / 148,840.50-205,403.56-85,198.80

Finding the Fourth Proportional to 148,840.50, 205,403.56 and 85,198.80

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Solution

The fourth proportional to 148,840.50, 205,403.56 and 85,198.80 is: 117,576.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.50 : 205,403.56 = 85,198.80 : x
  2. Step 2: Convert to fraction form
    148,840.50/205,403.56 = 85,198.80/x
  3. Step 3: Cross multiply
    148,840.50x = 205,403.56 × 85,198.80
  4. Step 4: Simplify right side
    148,840.50x = 17,500,136,827.73
  5. Step 5: Solve for x
    x = 17,500,136,827.73/148,840.50
  6. Step 6: Final answer
    x = 117,576.44

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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.