Home / 196,206.20-293,726.10-129,721.40

Finding the Fourth Proportional to 196,206.20, 293,726.10 and 129,721.40

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Solution

The fourth proportional to 196,206.20, 293,726.10 and 129,721.40 is: 194,196.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,206.20 : 293,726.10 = 129,721.40 : x
  2. Step 2: Convert to fraction form
    196,206.20/293,726.10 = 129,721.40/x
  3. Step 3: Cross multiply
    196,206.20x = 293,726.10 × 129,721.40
  4. Step 4: Simplify right side
    196,206.20x = 38,102,560,908.54
  5. Step 5: Solve for x
    x = 38,102,560,908.54/196,206.20
  6. Step 6: Final answer
    x = 194,196.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.