Home / 226,194.05-312,153.03-129,407.01

Finding the Fourth Proportional to 226,194.05, 312,153.03 and 129,407.01

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Solution

The fourth proportional to 226,194.05, 312,153.03 and 129,407.01 is: 178,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,194.05 : 312,153.03 = 129,407.01 : x
  2. Step 2: Convert to fraction form
    226,194.05/312,153.03 = 129,407.01/x
  3. Step 3: Cross multiply
    226,194.05x = 312,153.03 × 129,407.01
  4. Step 4: Simplify right side
    226,194.05x = 40,394,790,274.74
  5. Step 5: Solve for x
    x = 40,394,790,274.74/226,194.05
  6. Step 6: Final answer
    x = 178,584.68

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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.