Home / 143,992.72-215,964.46-38,787.09

Finding the Fourth Proportional to 143,992.72, 215,964.46 and 38,787.09

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Solution

The fourth proportional to 143,992.72, 215,964.46 and 38,787.09 is: 58,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,992.72 : 215,964.46 = 38,787.09 : x
  2. Step 2: Convert to fraction form
    143,992.72/215,964.46 = 38,787.09/x
  3. Step 3: Cross multiply
    143,992.72x = 215,964.46 × 38,787.09
  4. Step 4: Simplify right side
    143,992.72x = 8,376,632,946.82
  5. Step 5: Solve for x
    x = 8,376,632,946.82/143,992.72
  6. Step 6: Final answer
    x = 58,174.00

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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.