Home / 190,311.50-285,456.27-57,188.90

Finding the Fourth Proportional to 190,311.50, 285,456.27 and 57,188.90

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Solution

The fourth proportional to 190,311.50, 285,456.27 and 57,188.90 is: 85,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,311.50 : 285,456.27 = 57,188.90 : x
  2. Step 2: Convert to fraction form
    190,311.50/285,456.27 = 57,188.90/x
  3. Step 3: Cross multiply
    190,311.50x = 285,456.27 × 57,188.90
  4. Step 4: Simplify right side
    190,311.50x = 16,324,930,079.40
  5. Step 5: Solve for x
    x = 16,324,930,079.40/190,311.50
  6. Step 6: Final answer
    x = 85,780.05

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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.