Home / 190,135.27-285,202.12-47,980.87

Finding the Fourth Proportional to 190,135.27, 285,202.12 and 47,980.87

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Solution

The fourth proportional to 190,135.27, 285,202.12 and 47,980.87 is: 71,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,135.27 : 285,202.12 = 47,980.87 : x
  2. Step 2: Convert to fraction form
    190,135.27/285,202.12 = 47,980.87/x
  3. Step 3: Cross multiply
    190,135.27x = 285,202.12 × 47,980.87
  4. Step 4: Simplify right side
    190,135.27x = 13,684,245,843.44
  5. Step 5: Solve for x
    x = 13,684,245,843.44/190,135.27
  6. Step 6: Final answer
    x = 71,971.11

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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.