Home / 140,682.28-194,146.44-77,020.54

Finding the Fourth Proportional to 140,682.28, 194,146.44 and 77,020.54

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Solution

The fourth proportional to 140,682.28, 194,146.44 and 77,020.54 is: 106,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,682.28 : 194,146.44 = 77,020.54 : x
  2. Step 2: Convert to fraction form
    140,682.28/194,146.44 = 77,020.54/x
  3. Step 3: Cross multiply
    140,682.28x = 194,146.44 × 77,020.54
  4. Step 4: Simplify right side
    140,682.28x = 14,953,263,647.88
  5. Step 5: Solve for x
    x = 14,953,263,647.88/140,682.28
  6. Step 6: Final answer
    x = 106,291.02

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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.