Home / 236,814.72-326,809.01-129,391.41

Finding the Fourth Proportional to 236,814.72, 326,809.01 and 129,391.41

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Solution

The fourth proportional to 236,814.72, 326,809.01 and 129,391.41 is: 178,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,814.72 : 326,809.01 = 129,391.41 : x
  2. Step 2: Convert to fraction form
    236,814.72/326,809.01 = 129,391.41/x
  3. Step 3: Cross multiply
    236,814.72x = 326,809.01 × 129,391.41
  4. Step 4: Simplify right side
    236,814.72x = 42,286,278,604.60
  5. Step 5: Solve for x
    x = 42,286,278,604.60/236,814.72
  6. Step 6: Final answer
    x = 178,562.71

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1.5x scale

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.