Home / 190,309.46-262,607.91-105,410.66

Finding the Fourth Proportional to 190,309.46, 262,607.91 and 105,410.66

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Solution

The fourth proportional to 190,309.46, 262,607.91 and 105,410.66 is: 145,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,309.46 : 262,607.91 = 105,410.66 : x
  2. Step 2: Convert to fraction form
    190,309.46/262,607.91 = 105,410.66/x
  3. Step 3: Cross multiply
    190,309.46x = 262,607.91 × 105,410.66
  4. Step 4: Simplify right side
    190,309.46x = 27,681,672,853.09
  5. Step 5: Solve for x
    x = 27,681,672,853.09/190,309.46
  6. Step 6: Final answer
    x = 145,456.11

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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.