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Finding the Fourth Proportional to 101,801.67, 140,487.09 and 55,861.02

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Solution

The fourth proportional to 101,801.67, 140,487.09 and 55,861.02 is: 77,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,801.67 : 140,487.09 = 55,861.02 : x
  2. Step 2: Convert to fraction form
    101,801.67/140,487.09 = 55,861.02/x
  3. Step 3: Cross multiply
    101,801.67x = 140,487.09 × 55,861.02
  4. Step 4: Simplify right side
    101,801.67x = 7,847,752,144.23
  5. Step 5: Solve for x
    x = 7,847,752,144.23/101,801.67
  6. Step 6: Final answer
    x = 77,088.64

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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.