Home / 190,409.25-262,764.78-105,531.78

Finding the Fourth Proportional to 190,409.25, 262,764.78 and 105,531.78

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Solution

The fourth proportional to 190,409.25, 262,764.78 and 105,531.78 is: 145,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,409.25 : 262,764.78 = 105,531.78 : x
  2. Step 2: Convert to fraction form
    190,409.25/262,764.78 = 105,531.78/x
  3. Step 3: Cross multiply
    190,409.25x = 262,764.78 × 105,531.78
  4. Step 4: Simplify right side
    190,409.25x = 27,730,034,954.71
  5. Step 5: Solve for x
    x = 27,730,034,954.71/190,409.25
  6. Step 6: Final answer
    x = 145,633.86

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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.