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Finding the Fourth Proportional to 143,762.64, 215,676.77 and 43,937.03

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Solution

The fourth proportional to 143,762.64, 215,676.77 and 43,937.03 is: 65,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,762.64 : 215,676.77 = 43,937.03 : x
  2. Step 2: Convert to fraction form
    143,762.64/215,676.77 = 43,937.03/x
  3. Step 3: Cross multiply
    143,762.64x = 215,676.77 × 43,937.03
  4. Step 4: Simplify right side
    143,762.64x = 9,476,195,415.72
  5. Step 5: Solve for x
    x = 9,476,195,415.72/143,762.64
  6. Step 6: Final answer
    x = 65,915.56

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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.