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Finding the Fourth Proportional to 145,402.54, 218,138.73 and 50,618.77

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Solution

The fourth proportional to 145,402.54, 218,138.73 and 50,618.77 is: 75,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,402.54 : 218,138.73 = 50,618.77 : x
  2. Step 2: Convert to fraction form
    145,402.54/218,138.73 = 50,618.77/x
  3. Step 3: Cross multiply
    145,402.54x = 218,138.73 × 50,618.77
  4. Step 4: Simplify right side
    145,402.54x = 11,041,914,201.96
  5. Step 5: Solve for x
    x = 11,041,914,201.96/145,402.54
  6. Step 6: Final answer
    x = 75,940.31

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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.