Home / 143,353.28-197,832.60-78,827.41

Finding the Fourth Proportional to 143,353.28, 197,832.60 and 78,827.41

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Solution

The fourth proportional to 143,353.28, 197,832.60 and 78,827.41 is: 108,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.28 : 197,832.60 = 78,827.41 : x
  2. Step 2: Convert to fraction form
    143,353.28/197,832.60 = 78,827.41/x
  3. Step 3: Cross multiply
    143,353.28x = 197,832.60 × 78,827.41
  4. Step 4: Simplify right side
    143,353.28x = 15,594,631,471.57
  5. Step 5: Solve for x
    x = 15,594,631,471.57/143,353.28
  6. Step 6: Final answer
    x = 108,784.62

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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.