Home / 236,747.70-326,718.90-129,322.80

Finding the Fourth Proportional to 236,747.70, 326,718.90 and 129,322.80

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Solution

The fourth proportional to 236,747.70, 326,718.90 and 129,322.80 is: 178,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,747.70 : 326,718.90 = 129,322.80 : x
  2. Step 2: Convert to fraction form
    236,747.70/326,718.90 = 129,322.80/x
  3. Step 3: Cross multiply
    236,747.70x = 326,718.90 × 129,322.80
  4. Step 4: Simplify right side
    236,747.70x = 42,252,202,960.92
  5. Step 5: Solve for x
    x = 42,252,202,960.92/236,747.70
  6. Step 6: Final answer
    x = 178,469.33

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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.