Home / 236,512.23-326,387.78-129,084.63

Finding the Fourth Proportional to 236,512.23, 326,387.78 and 129,084.63

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Solution

The fourth proportional to 236,512.23, 326,387.78 and 129,084.63 is: 178,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,512.23 : 326,387.78 = 129,084.63 : x
  2. Step 2: Convert to fraction form
    236,512.23/326,387.78 = 129,084.63/x
  3. Step 3: Cross multiply
    236,512.23x = 326,387.78 × 129,084.63
  4. Step 4: Simplify right side
    236,512.23x = 42,131,645,817.82
  5. Step 5: Solve for x
    x = 42,131,645,817.82/236,512.23
  6. Step 6: Final answer
    x = 178,137.28

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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.