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Finding the Fourth Proportional to 101,668.47, 140,302.49 and 56,353.27

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Solution

The fourth proportional to 101,668.47, 140,302.49 and 56,353.27 is: 77,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,668.47 : 140,302.49 = 56,353.27 : x
  2. Step 2: Convert to fraction form
    101,668.47/140,302.49 = 56,353.27/x
  3. Step 3: Cross multiply
    101,668.47x = 140,302.49 × 56,353.27
  4. Step 4: Simplify right side
    101,668.47x = 7,906,504,100.64
  5. Step 5: Solve for x
    x = 7,906,504,100.64/101,668.47
  6. Step 6: Final answer
    x = 77,767.51

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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.