Home / 196,400.81-294,620.25-78,045.63

Finding the Fourth Proportional to 196,400.81, 294,620.25 and 78,045.63

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Solution

The fourth proportional to 196,400.81, 294,620.25 and 78,045.63 is: 117,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,400.81 : 294,620.25 = 78,045.63 : x
  2. Step 2: Convert to fraction form
    196,400.81/294,620.25 = 78,045.63/x
  3. Step 3: Cross multiply
    196,400.81x = 294,620.25 × 78,045.63
  4. Step 4: Simplify right side
    196,400.81x = 22,993,823,022.01
  5. Step 5: Solve for x
    x = 22,993,823,022.01/196,400.81
  6. Step 6: Final answer
    x = 117,076.01

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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.