Home / 190,623.78-286,122.78-159,235.47

Finding the Fourth Proportional to 190,623.78, 286,122.78 and 159,235.47

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Solution

The fourth proportional to 190,623.78, 286,122.78 and 159,235.47 is: 239,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,623.78 : 286,122.78 = 159,235.47 : x
  2. Step 2: Convert to fraction form
    190,623.78/286,122.78 = 159,235.47/x
  3. Step 3: Cross multiply
    190,623.78x = 286,122.78 × 159,235.47
  4. Step 4: Simplify right side
    190,623.78x = 45,560,895,351.01
  5. Step 5: Solve for x
    x = 45,560,895,351.01/190,623.78
  6. Step 6: Final answer
    x = 239,009.51

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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.