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Finding the Fourth Proportional to 121,375.79, 181,936.70 and 41,385.71

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Solution

The fourth proportional to 121,375.79, 181,936.70 and 41,385.71 is: 62,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,375.79 : 181,936.70 = 41,385.71 : x
  2. Step 2: Convert to fraction form
    121,375.79/181,936.70 = 41,385.71/x
  3. Step 3: Cross multiply
    121,375.79x = 181,936.70 × 41,385.71
  4. Step 4: Simplify right side
    121,375.79x = 7,529,579,483.27
  5. Step 5: Solve for x
    x = 7,529,579,483.27/121,375.79
  6. Step 6: Final answer
    x = 62,035.27

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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.