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Finding the Fourth Proportional to 139,146.34, 192,022.32 and 75,484.14

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Solution

The fourth proportional to 139,146.34, 192,022.32 and 75,484.14 is: 104,168.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,146.34 : 192,022.32 = 75,484.14 : x
  2. Step 2: Convert to fraction form
    139,146.34/192,022.32 = 75,484.14/x
  3. Step 3: Cross multiply
    139,146.34x = 192,022.32 × 75,484.14
  4. Step 4: Simplify right side
    139,146.34x = 14,494,638,348.47
  5. Step 5: Solve for x
    x = 14,494,638,348.47/139,146.34
  6. Step 6: Final answer
    x = 104,168.31

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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.