Home / 190,188.90-262,468.89-105,305.97

Finding the Fourth Proportional to 190,188.90, 262,468.89 and 105,305.97

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Solution

The fourth proportional to 190,188.90, 262,468.89 and 105,305.97 is: 145,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,188.90 : 262,468.89 = 105,305.97 : x
  2. Step 2: Convert to fraction form
    190,188.90/262,468.89 = 105,305.97/x
  3. Step 3: Cross multiply
    190,188.90x = 262,468.89 × 105,305.97
  4. Step 4: Simplify right side
    190,188.90x = 27,639,541,056.27
  5. Step 5: Solve for x
    x = 27,639,541,056.27/190,188.90
  6. Step 6: Final answer
    x = 145,326.78

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1.5x scale

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.