Home / 194,138.10-291,318.12-105,398.82

Finding the Fourth Proportional to 194,138.10, 291,318.12 and 105,398.82

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Solution

The fourth proportional to 194,138.10, 291,318.12 and 105,398.82 is: 158,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,138.10 : 291,318.12 = 105,398.82 : x
  2. Step 2: Convert to fraction form
    194,138.10/291,318.12 = 105,398.82/x
  3. Step 3: Cross multiply
    194,138.10x = 291,318.12 × 105,398.82
  4. Step 4: Simplify right side
    194,138.10x = 30,704,586,092.62
  5. Step 5: Solve for x
    x = 30,704,586,092.62/194,138.10
  6. Step 6: Final answer
    x = 158,158.48

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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.