Home / 190,221.78-262,496.56-109,644.42

Finding the Fourth Proportional to 190,221.78, 262,496.56 and 109,644.42

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Solution

The fourth proportional to 190,221.78, 262,496.56 and 109,644.42 is: 151,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,221.78 : 262,496.56 = 109,644.42 : x
  2. Step 2: Convert to fraction form
    190,221.78/262,496.56 = 109,644.42/x
  3. Step 3: Cross multiply
    190,221.78x = 262,496.56 × 109,644.42
  4. Step 4: Simplify right side
    190,221.78x = 28,781,283,073.20
  5. Step 5: Solve for x
    x = 28,781,283,073.20/190,221.78
  6. Step 6: Final answer
    x = 151,303.83

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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.