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Finding the Fourth Proportional to 120,873.63, 181,343.25 and 36,630.39

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Solution

The fourth proportional to 120,873.63, 181,343.25 and 36,630.39 is: 54,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,873.63 : 181,343.25 = 36,630.39 : x
  2. Step 2: Convert to fraction form
    120,873.63/181,343.25 = 36,630.39/x
  3. Step 3: Cross multiply
    120,873.63x = 181,343.25 × 36,630.39
  4. Step 4: Simplify right side
    120,873.63x = 6,642,673,971.37
  5. Step 5: Solve for x
    x = 6,642,673,971.37/120,873.63
  6. Step 6: Final answer
    x = 54,955.53

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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.