Home / 196,115.36-294,270.24-77,784.16

Finding the Fourth Proportional to 196,115.36, 294,270.24 and 77,784.16

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Solution

The fourth proportional to 196,115.36, 294,270.24 and 77,784.16 is: 116,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,115.36 : 294,270.24 = 77,784.16 : x
  2. Step 2: Convert to fraction form
    196,115.36/294,270.24 = 77,784.16/x
  3. Step 3: Cross multiply
    196,115.36x = 294,270.24 × 77,784.16
  4. Step 4: Simplify right side
    196,115.36x = 22,889,563,431.40
  5. Step 5: Solve for x
    x = 22,889,563,431.40/196,115.36
  6. Step 6: Final answer
    x = 116,714.79

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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.