Home / 190,825.75-286,369.85-66,166.75

Finding the Fourth Proportional to 190,825.75, 286,369.85 and 66,166.75

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Solution

The fourth proportional to 190,825.75, 286,369.85 and 66,166.75 is: 99,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,825.75 : 286,369.85 = 66,166.75 : x
  2. Step 2: Convert to fraction form
    190,825.75/286,369.85 = 66,166.75/x
  3. Step 3: Cross multiply
    190,825.75x = 286,369.85 × 66,166.75
  4. Step 4: Simplify right side
    190,825.75x = 18,948,162,272.49
  5. Step 5: Solve for x
    x = 18,948,162,272.49/190,825.75
  6. Step 6: Final answer
    x = 99,295.63

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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.