Home / 196,031.25-270,423.38-128,087.94

Finding the Fourth Proportional to 196,031.25, 270,423.38 and 128,087.94

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Solution

The fourth proportional to 196,031.25, 270,423.38 and 128,087.94 is: 176,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,031.25 : 270,423.38 = 128,087.94 : x
  2. Step 2: Convert to fraction form
    196,031.25/270,423.38 = 128,087.94/x
  3. Step 3: Cross multiply
    196,031.25x = 270,423.38 × 128,087.94
  4. Step 4: Simplify right side
    196,031.25x = 34,637,972,355.54
  5. Step 5: Solve for x
    x = 34,637,972,355.54/196,031.25
  6. Step 6: Final answer
    x = 176,696.18

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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.