Home / 190,406.25-262,760.63-105,528.78

Finding the Fourth Proportional to 190,406.25, 262,760.63 and 105,528.78

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Solution

The fourth proportional to 190,406.25, 262,760.63 and 105,528.78 is: 145,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,406.25 : 262,760.63 = 105,528.78 : x
  2. Step 2: Convert to fraction form
    190,406.25/262,760.63 = 105,528.78/x
  3. Step 3: Cross multiply
    190,406.25x = 262,760.63 × 105,528.78
  4. Step 4: Simplify right side
    190,406.25x = 27,728,808,188.29
  5. Step 5: Solve for x
    x = 27,728,808,188.29/190,406.25
  6. Step 6: Final answer
    x = 145,629.72

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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.