Home / 189,245.50-283,868.30-76,986.79

Finding the Fourth Proportional to 189,245.50, 283,868.30 and 76,986.79

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Solution

The fourth proportional to 189,245.50, 283,868.30 and 76,986.79 is: 115,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,245.50 : 283,868.30 = 76,986.79 : x
  2. Step 2: Convert to fraction form
    189,245.50/283,868.30 = 76,986.79/x
  3. Step 3: Cross multiply
    189,245.50x = 283,868.30 × 76,986.79
  4. Step 4: Simplify right side
    189,245.50x = 21,854,109,199.76
  5. Step 5: Solve for x
    x = 21,854,109,199.76/189,245.50
  6. Step 6: Final answer
    x = 115,480.21

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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.