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Finding the Fourth Proportional to 101,544, 140,111.28 and 65,729.04

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Solution

The fourth proportional to 101,544, 140,111.28 and 65,729.04 is: 90,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,544 : 140,111.28 = 65,729.04 : x
  2. Step 2: Convert to fraction form
    101,544/140,111.28 = 65,729.04/x
  3. Step 3: Cross multiply
    101,544x = 140,111.28 × 65,729.04
  4. Step 4: Simplify right side
    101,544x = 9,209,379,927.57
  5. Step 5: Solve for x
    x = 9,209,379,927.57/101,544
  6. Step 6: Final answer
    x = 90,693.49

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