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Finding the Fourth Proportional to 187,671.09, 280,800.37 and 131,620.61

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Solution

The fourth proportional to 187,671.09, 280,800.37 and 131,620.61 is: 196,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671.09 : 280,800.37 = 131,620.61 : x
  2. Step 2: Convert to fraction form
    187,671.09/280,800.37 = 131,620.61/x
  3. Step 3: Cross multiply
    187,671.09x = 280,800.37 × 131,620.61
  4. Step 4: Simplify right side
    187,671.09x = 36,959,116,854.15
  5. Step 5: Solve for x
    x = 36,959,116,854.15/187,671.09
  6. Step 6: Final answer
    x = 196,935.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.