Home / 196,578.70-294,367.78-129,918.94

Finding the Fourth Proportional to 196,578.70, 294,367.78 and 129,918.94

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Solution

The fourth proportional to 196,578.70, 294,367.78 and 129,918.94 is: 194,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,578.70 : 294,367.78 = 129,918.94 : x
  2. Step 2: Convert to fraction form
    196,578.70/294,367.78 = 129,918.94/x
  3. Step 3: Cross multiply
    196,578.70x = 294,367.78 × 129,918.94
  4. Step 4: Simplify right side
    196,578.70x = 38,243,949,298.16
  5. Step 5: Solve for x
    x = 38,243,949,298.16/196,578.70
  6. Step 6: Final answer
    x = 194,547.78

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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.