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Finding the Fourth Proportional to 139,504.70, 192,514.35 and 75,841.94

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Solution

The fourth proportional to 139,504.70, 192,514.35 and 75,841.94 is: 104,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,504.70 : 192,514.35 = 75,841.94 : x
  2. Step 2: Convert to fraction form
    139,504.70/192,514.35 = 75,841.94/x
  3. Step 3: Cross multiply
    139,504.70x = 192,514.35 × 75,841.94
  4. Step 4: Simplify right side
    139,504.70x = 14,600,661,781.84
  5. Step 5: Solve for x
    x = 14,600,661,781.84/139,504.70
  6. Step 6: Final answer
    x = 104,660.72

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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.