Home / 194,780.10-268,796.81-109,905.06

Finding the Fourth Proportional to 194,780.10, 268,796.81 and 109,905.06

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Solution

The fourth proportional to 194,780.10, 268,796.81 and 109,905.06 is: 151,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,780.10 : 268,796.81 = 109,905.06 : x
  2. Step 2: Convert to fraction form
    194,780.10/268,796.81 = 109,905.06/x
  3. Step 3: Cross multiply
    194,780.10x = 268,796.81 × 109,905.06
  4. Step 4: Simplify right side
    194,780.10x = 29,542,128,981.33
  5. Step 5: Solve for x
    x = 29,542,128,981.33/194,780.10
  6. Step 6: Final answer
    x = 151,669.13

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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.