Home / 196,537.04-271,137.06-128,435.81

Finding the Fourth Proportional to 196,537.04, 271,137.06 and 128,435.81

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Solution

The fourth proportional to 196,537.04, 271,137.06 and 128,435.81 is: 177,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,537.04 : 271,137.06 = 128,435.81 : x
  2. Step 2: Convert to fraction form
    196,537.04/271,137.06 = 128,435.81/x
  3. Step 3: Cross multiply
    196,537.04x = 271,137.06 × 128,435.81
  4. Step 4: Simplify right side
    196,537.04x = 34,823,707,922.12
  5. Step 5: Solve for x
    x = 34,823,707,922.12/196,537.04
  6. Step 6: Final answer
    x = 177,186.49

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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.