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Finding the Fourth Proportional to 102,850.96, 141,893.76 and 64,588

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Solution

The fourth proportional to 102,850.96, 141,893.76 and 64,588 is: 89,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,850.96 : 141,893.76 = 64,588 : x
  2. Step 2: Convert to fraction form
    102,850.96/141,893.76 = 64,588/x
  3. Step 3: Cross multiply
    102,850.96x = 141,893.76 × 64,588
  4. Step 4: Simplify right side
    102,850.96x = 9,164,634,170.88
  5. Step 5: Solve for x
    x = 9,164,634,170.88/102,850.96
  6. Step 6: Final answer
    x = 89,105.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.