Home / 142,977.66-197,310.06-82,550.76

Finding the Fourth Proportional to 142,977.66, 197,310.06 and 82,550.76

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Solution

The fourth proportional to 142,977.66, 197,310.06 and 82,550.76 is: 113,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,977.66 : 197,310.06 = 82,550.76 : x
  2. Step 2: Convert to fraction form
    142,977.66/197,310.06 = 82,550.76/x
  3. Step 3: Cross multiply
    142,977.66x = 197,310.06 × 82,550.76
  4. Step 4: Simplify right side
    142,977.66x = 16,288,095,408.65
  5. Step 5: Solve for x
    x = 16,288,095,408.65/142,977.66
  6. Step 6: Final answer
    x = 113,920.56

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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.