Home / 131,246.73-181,103.85-82,830.60

Finding the Fourth Proportional to 131,246.73, 181,103.85 and 82,830.60

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Solution

The fourth proportional to 131,246.73, 181,103.85 and 82,830.60 is: 114,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,246.73 : 181,103.85 = 82,830.60 : x
  2. Step 2: Convert to fraction form
    131,246.73/181,103.85 = 82,830.60/x
  3. Step 3: Cross multiply
    131,246.73x = 181,103.85 × 82,830.60
  4. Step 4: Simplify right side
    131,246.73x = 15,000,940,557.81
  5. Step 5: Solve for x
    x = 15,000,940,557.81/131,246.73
  6. Step 6: Final answer
    x = 114,295.73

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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.