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Finding the Fourth Proportional to 145,383.29, 218,129.63 and 50,620.58

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Solution

The fourth proportional to 145,383.29, 218,129.63 and 50,620.58 is: 75,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,383.29 : 218,129.63 = 50,620.58 : x
  2. Step 2: Convert to fraction form
    145,383.29/218,129.63 = 50,620.58/x
  3. Step 3: Cross multiply
    145,383.29x = 218,129.63 × 50,620.58
  4. Step 4: Simplify right side
    145,383.29x = 11,041,847,042.03
  5. Step 5: Solve for x
    x = 11,041,847,042.03/145,383.29
  6. Step 6: Final answer
    x = 75,949.91

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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.