Home / 140,861.57-194,393.88-77,199.35

Finding the Fourth Proportional to 140,861.57, 194,393.88 and 77,199.35

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Solution

The fourth proportional to 140,861.57, 194,393.88 and 77,199.35 is: 106,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,861.57 : 194,393.88 = 77,199.35 : x
  2. Step 2: Convert to fraction form
    140,861.57/194,393.88 = 77,199.35/x
  3. Step 3: Cross multiply
    140,861.57x = 194,393.88 × 77,199.35
  4. Step 4: Simplify right side
    140,861.57x = 15,007,080,208.01
  5. Step 5: Solve for x
    x = 15,007,080,208.01/140,861.57
  6. Step 6: Final answer
    x = 106,537.79

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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.