Home / 140,806.50-194,313.09-77,144.58

Finding the Fourth Proportional to 140,806.50, 194,313.09 and 77,144.58

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Solution

The fourth proportional to 140,806.50, 194,313.09 and 77,144.58 is: 106,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,806.50 : 194,313.09 = 77,144.58 : x
  2. Step 2: Convert to fraction form
    140,806.50/194,313.09 = 77,144.58/x
  3. Step 3: Cross multiply
    140,806.50x = 194,313.09 × 77,144.58
  4. Step 4: Simplify right side
    140,806.50x = 14,990,201,716.55
  5. Step 5: Solve for x
    x = 14,990,201,716.55/140,806.50
  6. Step 6: Final answer
    x = 106,459.59

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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.