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Finding the Fourth Proportional to 139,504.70, 209,257.66 and 34,323.37

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Solution

The fourth proportional to 139,504.70, 209,257.66 and 34,323.37 is: 51,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,504.70 : 209,257.66 = 34,323.37 : x
  2. Step 2: Convert to fraction form
    139,504.70/209,257.66 = 34,323.37/x
  3. Step 3: Cross multiply
    139,504.70x = 209,257.66 × 34,323.37
  4. Step 4: Simplify right side
    139,504.70x = 7,182,428,089.51
  5. Step 5: Solve for x
    x = 7,182,428,089.51/139,504.70
  6. Step 6: Final answer
    x = 51,485.21

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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.