Home / 126,777.57-190,206.15-76,234.79

Finding the Fourth Proportional to 126,777.57, 190,206.15 and 76,234.79

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Solution

The fourth proportional to 126,777.57, 190,206.15 and 76,234.79 is: 114,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,777.57 : 190,206.15 = 76,234.79 : x
  2. Step 2: Convert to fraction form
    126,777.57/190,206.15 = 76,234.79/x
  3. Step 3: Cross multiply
    126,777.57x = 190,206.15 × 76,234.79
  4. Step 4: Simplify right side
    126,777.57x = 14,500,324,950.93
  5. Step 5: Solve for x
    x = 14,500,324,950.93/126,777.57
  6. Step 6: Final answer
    x = 114,376.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.