Home / 194,128.64-291,195.12-67,769.04

Finding the Fourth Proportional to 194,128.64, 291,195.12 and 67,769.04

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Solution

The fourth proportional to 194,128.64, 291,195.12 and 67,769.04 is: 101,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,128.64 : 291,195.12 = 67,769.04 : x
  2. Step 2: Convert to fraction form
    194,128.64/291,195.12 = 67,769.04/x
  3. Step 3: Cross multiply
    194,128.64x = 291,195.12 × 67,769.04
  4. Step 4: Simplify right side
    194,128.64x = 19,734,013,735.08
  5. Step 5: Solve for x
    x = 19,734,013,735.08/194,128.64
  6. Step 6: Final answer
    x = 101,654.32

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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.