Home / 143,353.33-197,832.68-78,827.48

Finding the Fourth Proportional to 143,353.33, 197,832.68 and 78,827.48

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Solution

The fourth proportional to 143,353.33, 197,832.68 and 78,827.48 is: 108,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.33 : 197,832.68 = 78,827.48 : x
  2. Step 2: Convert to fraction form
    143,353.33/197,832.68 = 78,827.48/x
  3. Step 3: Cross multiply
    143,353.33x = 197,832.68 × 78,827.48
  4. Step 4: Simplify right side
    143,353.33x = 15,594,651,626.05
  5. Step 5: Solve for x
    x = 15,594,651,626.05/143,353.33
  6. Step 6: Final answer
    x = 108,784.72

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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.