Home / 139,961.35-193,149.46-76,299.10

Finding the Fourth Proportional to 139,961.35, 193,149.46 and 76,299.10

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Solution

The fourth proportional to 139,961.35, 193,149.46 and 76,299.10 is: 105,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,961.35 : 193,149.46 = 76,299.10 : x
  2. Step 2: Convert to fraction form
    139,961.35/193,149.46 = 76,299.10/x
  3. Step 3: Cross multiply
    139,961.35x = 193,149.46 × 76,299.10
  4. Step 4: Simplify right side
    139,961.35x = 14,737,129,575.99
  5. Step 5: Solve for x
    x = 14,737,129,575.99/139,961.35
  6. Step 6: Final answer
    x = 105,294.28

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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.