Home / 142,912.30-197,204.76-82,502.40

Finding the Fourth Proportional to 142,912.30, 197,204.76 and 82,502.40

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Solution

The fourth proportional to 142,912.30, 197,204.76 and 82,502.40 is: 113,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,912.30 : 197,204.76 = 82,502.40 : x
  2. Step 2: Convert to fraction form
    142,912.30/197,204.76 = 82,502.40/x
  3. Step 3: Cross multiply
    142,912.30x = 197,204.76 × 82,502.40
  4. Step 4: Simplify right side
    142,912.30x = 16,269,865,991.42
  5. Step 5: Solve for x
    x = 16,269,865,991.42/142,912.30
  6. Step 6: Final answer
    x = 113,845.11

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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.