Home / 142,812.74-197,073.97-82,379.77

Finding the Fourth Proportional to 142,812.74, 197,073.97 and 82,379.77

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Solution

The fourth proportional to 142,812.74, 197,073.97 and 82,379.77 is: 113,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,812.74 : 197,073.97 = 82,379.77 : x
  2. Step 2: Convert to fraction form
    142,812.74/197,073.97 = 82,379.77/x
  3. Step 3: Cross multiply
    142,812.74x = 197,073.97 × 82,379.77
  4. Step 4: Simplify right side
    142,812.74x = 16,234,907,622.95
  5. Step 5: Solve for x
    x = 16,234,907,622.95/142,812.74
  6. Step 6: Final answer
    x = 113,679.69

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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.