Home / 131,844.60-181,941.66-74,486.61

Finding the Fourth Proportional to 131,844.60, 181,941.66 and 74,486.61

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Solution

The fourth proportional to 131,844.60, 181,941.66 and 74,486.61 is: 102,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,844.60 : 181,941.66 = 74,486.61 : x
  2. Step 2: Convert to fraction form
    131,844.60/181,941.66 = 74,486.61/x
  3. Step 3: Cross multiply
    131,844.60x = 181,941.66 × 74,486.61
  4. Step 4: Simplify right side
    131,844.60x = 13,552,217,471.17
  5. Step 5: Solve for x
    x = 13,552,217,471.17/131,844.60
  6. Step 6: Final answer
    x = 102,789.33

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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.