Home / 190,810.78-263,339.85-109,146.58

Finding the Fourth Proportional to 190,810.78, 263,339.85 and 109,146.58

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Solution

The fourth proportional to 190,810.78, 263,339.85 and 109,146.58 is: 150,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,810.78 : 263,339.85 = 109,146.58 : x
  2. Step 2: Convert to fraction form
    190,810.78/263,339.85 = 109,146.58/x
  3. Step 3: Cross multiply
    190,810.78x = 263,339.85 × 109,146.58
  4. Step 4: Simplify right side
    190,810.78x = 28,742,644,005.21
  5. Step 5: Solve for x
    x = 28,742,644,005.21/190,810.78
  6. Step 6: Final answer
    x = 150,634.28

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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.