Home / 236,647.23-326,571.87-129,216.50

Finding the Fourth Proportional to 236,647.23, 326,571.87 and 129,216.50

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Solution

The fourth proportional to 236,647.23, 326,571.87 and 129,216.50 is: 178,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,647.23 : 326,571.87 = 129,216.50 : x
  2. Step 2: Convert to fraction form
    236,647.23/326,571.87 = 129,216.50/x
  3. Step 3: Cross multiply
    236,647.23x = 326,571.87 × 129,216.50
  4. Step 4: Simplify right side
    236,647.23x = 42,198,474,039.86
  5. Step 5: Solve for x
    x = 42,198,474,039.86/236,647.23
  6. Step 6: Final answer
    x = 178,318.06

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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.