Home / 196,537.54-271,137.75-128,436.31

Finding the Fourth Proportional to 196,537.54, 271,137.75 and 128,436.31

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Solution

The fourth proportional to 196,537.54, 271,137.75 and 128,436.31 is: 177,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,537.54 : 271,137.75 = 128,436.31 : x
  2. Step 2: Convert to fraction form
    196,537.54/271,137.75 = 128,436.31/x
  3. Step 3: Cross multiply
    196,537.54x = 271,137.75 × 128,436.31
  4. Step 4: Simplify right side
    196,537.54x = 34,823,932,111.70
  5. Step 5: Solve for x
    x = 34,823,932,111.70/196,537.54
  6. Step 6: Final answer
    x = 177,187.18

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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.