Home / 196,212.20-293,735.10-129,727.40

Finding the Fourth Proportional to 196,212.20, 293,735.10 and 129,727.40

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Solution

The fourth proportional to 196,212.20, 293,735.10 and 129,727.40 is: 194,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,212.20 : 293,735.10 = 129,727.40 : x
  2. Step 2: Convert to fraction form
    196,212.20/293,735.10 = 129,727.40/x
  3. Step 3: Cross multiply
    196,212.20x = 293,735.10 × 129,727.40
  4. Step 4: Simplify right side
    196,212.20x = 38,105,490,811.74
  5. Step 5: Solve for x
    x = 38,105,490,811.74/196,212.20
  6. Step 6: Final answer
    x = 194,205.51

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1.5x scale

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.