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Finding the Fourth Proportional to 139,283.52, 192,369.52 and 93,883.20

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Solution

The fourth proportional to 139,283.52, 192,369.52 and 93,883.20 is: 129,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,283.52 : 192,369.52 = 93,883.20 : x
  2. Step 2: Convert to fraction form
    139,283.52/192,369.52 = 93,883.20/x
  3. Step 3: Cross multiply
    139,283.52x = 192,369.52 × 93,883.20
  4. Step 4: Simplify right side
    139,283.52x = 18,060,266,120.06
  5. Step 5: Solve for x
    x = 18,060,266,120.06/139,283.52
  6. Step 6: Final answer
    x = 129,665.49

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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.