Home / 190,405.59-262,759.71-105,528.12

Finding the Fourth Proportional to 190,405.59, 262,759.71 and 105,528.12

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Solution

The fourth proportional to 190,405.59, 262,759.71 and 105,528.12 is: 145,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,405.59 : 262,759.71 = 105,528.12 : x
  2. Step 2: Convert to fraction form
    190,405.59/262,759.71 = 105,528.12/x
  3. Step 3: Cross multiply
    190,405.59x = 262,759.71 × 105,528.12
  4. Step 4: Simplify right side
    190,405.59x = 27,728,536,630.43
  5. Step 5: Solve for x
    x = 27,728,536,630.43/190,405.59
  6. Step 6: Final answer
    x = 145,628.80

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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.