Home / 190,422.26-285,596.32-72,102.86

Finding the Fourth Proportional to 190,422.26, 285,596.32 and 72,102.86

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Solution

The fourth proportional to 190,422.26, 285,596.32 and 72,102.86 is: 108,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.26 : 285,596.32 = 72,102.86 : x
  2. Step 2: Convert to fraction form
    190,422.26/285,596.32 = 72,102.86/x
  3. Step 3: Cross multiply
    190,422.26x = 285,596.32 × 72,102.86
  4. Step 4: Simplify right side
    190,422.26x = 20,592,310,049.49
  5. Step 5: Solve for x
    x = 20,592,310,049.49/190,422.26
  6. Step 6: Final answer
    x = 108,140.25

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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.