Home / 190,578.78-285,828.08-122,908.14

Finding the Fourth Proportional to 190,578.78, 285,828.08 and 122,908.14

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Solution

The fourth proportional to 190,578.78, 285,828.08 and 122,908.14 is: 184,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,578.78 : 285,828.08 = 122,908.14 : x
  2. Step 2: Convert to fraction form
    190,578.78/285,828.08 = 122,908.14/x
  3. Step 3: Cross multiply
    190,578.78x = 285,828.08 × 122,908.14
  4. Step 4: Simplify right side
    190,578.78x = 35,130,597,058.03
  5. Step 5: Solve for x
    x = 35,130,597,058.03/190,578.78
  6. Step 6: Final answer
    x = 184,336.35

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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.