Home / 139,490.37-192,171.29-96,975.09

Finding the Fourth Proportional to 139,490.37, 192,171.29 and 96,975.09

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Solution

The fourth proportional to 139,490.37, 192,171.29 and 96,975.09 is: 133,599.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,490.37 : 192,171.29 = 96,975.09 : x
  2. Step 2: Convert to fraction form
    139,490.37/192,171.29 = 96,975.09/x
  3. Step 3: Cross multiply
    139,490.37x = 192,171.29 × 96,975.09
  4. Step 4: Simplify right side
    139,490.37x = 18,635,827,658.29
  5. Step 5: Solve for x
    x = 18,635,827,658.29/139,490.37
  6. Step 6: Final answer
    x = 133,599.39

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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.