Home / 190,829.75-286,375.85-66,170.75

Finding the Fourth Proportional to 190,829.75, 286,375.85 and 66,170.75

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Solution

The fourth proportional to 190,829.75, 286,375.85 and 66,170.75 is: 99,301.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,829.75 : 286,375.85 = 66,170.75 : x
  2. Step 2: Convert to fraction form
    190,829.75/286,375.85 = 66,170.75/x
  3. Step 3: Cross multiply
    190,829.75x = 286,375.85 × 66,170.75
  4. Step 4: Simplify right side
    190,829.75x = 18,949,704,445.53
  5. Step 5: Solve for x
    x = 18,949,704,445.53/190,829.75
  6. Step 6: Final answer
    x = 99,301.63

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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.