Home / 190,919.90-263,498.20-137,382.14

Finding the Fourth Proportional to 190,919.90, 263,498.20 and 137,382.14

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Solution

The fourth proportional to 190,919.90, 263,498.20 and 137,382.14 is: 189,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,919.90 : 263,498.20 = 137,382.14 : x
  2. Step 2: Convert to fraction form
    190,919.90/263,498.20 = 137,382.14/x
  3. Step 3: Cross multiply
    190,919.90x = 263,498.20 × 137,382.14
  4. Step 4: Simplify right side
    190,919.90x = 36,199,946,602.15
  5. Step 5: Solve for x
    x = 36,199,946,602.15/190,919.90
  6. Step 6: Final answer
    x = 189,608.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.