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Finding the Fourth Proportional to 159,804.53, 239,813.81 and 66,310.37

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Solution

The fourth proportional to 159,804.53, 239,813.81 and 66,310.37 is: 99,509.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,804.53 : 239,813.81 = 66,310.37 : x
  2. Step 2: Convert to fraction form
    159,804.53/239,813.81 = 66,310.37/x
  3. Step 3: Cross multiply
    159,804.53x = 239,813.81 × 66,310.37
  4. Step 4: Simplify right side
    159,804.53x = 15,902,143,237.52
  5. Step 5: Solve for x
    x = 15,902,143,237.52/159,804.53
  6. Step 6: Final answer
    x = 99,509.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.