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Finding the Fourth Proportional to 143,601.96, 215,340.33 and 43,738.68

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Solution

The fourth proportional to 143,601.96, 215,340.33 and 43,738.68 is: 65,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,601.96 : 215,340.33 = 43,738.68 : x
  2. Step 2: Convert to fraction form
    143,601.96/215,340.33 = 43,738.68/x
  3. Step 3: Cross multiply
    143,601.96x = 215,340.33 × 43,738.68
  4. Step 4: Simplify right side
    143,601.96x = 9,418,701,784.96
  5. Step 5: Solve for x
    x = 9,418,701,784.96/143,601.96
  6. Step 6: Final answer
    x = 65,588.95

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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.