Home / 142,812.30-197,073.38-82,379.33

Finding the Fourth Proportional to 142,812.30, 197,073.38 and 82,379.33

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Solution

The fourth proportional to 142,812.30, 197,073.38 and 82,379.33 is: 113,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,812.30 : 197,073.38 = 82,379.33 : x
  2. Step 2: Convert to fraction form
    142,812.30/197,073.38 = 82,379.33/x
  3. Step 3: Cross multiply
    142,812.30x = 197,073.38 × 82,379.33
  4. Step 4: Simplify right side
    142,812.30x = 16,234,772,593.34
  5. Step 5: Solve for x
    x = 16,234,772,593.34/142,812.30
  6. Step 6: Final answer
    x = 113,679.10

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1.5x scale

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.