Home / 140,542.40-193,946.94-76,879.44

Finding the Fourth Proportional to 140,542.40, 193,946.94 and 76,879.44

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Solution

The fourth proportional to 140,542.40, 193,946.94 and 76,879.44 is: 106,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,542.40 : 193,946.94 = 76,879.44 : x
  2. Step 2: Convert to fraction form
    140,542.40/193,946.94 = 76,879.44/x
  3. Step 3: Cross multiply
    140,542.40x = 193,946.94 × 76,879.44
  4. Step 4: Simplify right side
    140,542.40x = 14,910,532,136.91
  5. Step 5: Solve for x
    x = 14,910,532,136.91/140,542.40
  6. Step 6: Final answer
    x = 106,092.77

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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.