Home / 190,263.12-262,578.06-105,388.08

Finding the Fourth Proportional to 190,263.12, 262,578.06 and 105,388.08

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Solution

The fourth proportional to 190,263.12, 262,578.06 and 105,388.08 is: 145,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,263.12 : 262,578.06 = 105,388.08 : x
  2. Step 2: Convert to fraction form
    190,263.12/262,578.06 = 105,388.08/x
  3. Step 3: Cross multiply
    190,263.12x = 262,578.06 × 105,388.08
  4. Step 4: Simplify right side
    190,263.12x = 27,672,597,593.52
  5. Step 5: Solve for x
    x = 27,672,597,593.52/190,263.12
  6. Step 6: Final answer
    x = 145,443.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.