Home / 140,712.72-194,183.44-77,051.76

Finding the Fourth Proportional to 140,712.72, 194,183.44 and 77,051.76

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Solution

The fourth proportional to 140,712.72, 194,183.44 and 77,051.76 is: 106,331.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.72 : 194,183.44 = 77,051.76 : x
  2. Step 2: Convert to fraction form
    140,712.72/194,183.44 = 77,051.76/x
  3. Step 3: Cross multiply
    140,712.72x = 194,183.44 × 77,051.76
  4. Step 4: Simplify right side
    140,712.72x = 14,962,175,814.85
  5. Step 5: Solve for x
    x = 14,962,175,814.85/140,712.72
  6. Step 6: Final answer
    x = 106,331.37

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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.