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Finding the Fourth Proportional to 141,383.89, 212,070.30 and 47,889.64

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Solution

The fourth proportional to 141,383.89, 212,070.30 and 47,889.64 is: 71,832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,383.89 : 212,070.30 = 47,889.64 : x
  2. Step 2: Convert to fraction form
    141,383.89/212,070.30 = 47,889.64/x
  3. Step 3: Cross multiply
    141,383.89x = 212,070.30 × 47,889.64
  4. Step 4: Simplify right side
    141,383.89x = 10,155,970,321.69
  5. Step 5: Solve for x
    x = 10,155,970,321.69/141,383.89
  6. Step 6: Final answer
    x = 71,832.59

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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.