Home / 131,845.60-181,943.04-74,487.61

Finding the Fourth Proportional to 131,845.60, 181,943.04 and 74,487.61

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Solution

The fourth proportional to 131,845.60, 181,943.04 and 74,487.61 is: 102,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,845.60 : 181,943.04 = 74,487.61 : x
  2. Step 2: Convert to fraction form
    131,845.60/181,943.04 = 74,487.61/x
  3. Step 3: Cross multiply
    131,845.60x = 181,943.04 × 74,487.61
  4. Step 4: Simplify right side
    131,845.60x = 13,552,502,205.73
  5. Step 5: Solve for x
    x = 13,552,502,205.73/131,845.60
  6. Step 6: Final answer
    x = 102,790.71

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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.