Home / 190,047.49-262,273.73-105,164.55

Finding the Fourth Proportional to 190,047.49, 262,273.73 and 105,164.55

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Solution

The fourth proportional to 190,047.49, 262,273.73 and 105,164.55 is: 145,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,047.49 : 262,273.73 = 105,164.55 : x
  2. Step 2: Convert to fraction form
    190,047.49/262,273.73 = 105,164.55/x
  3. Step 3: Cross multiply
    190,047.49x = 262,273.73 × 105,164.55
  4. Step 4: Simplify right side
    190,047.49x = 27,581,898,792.27
  5. Step 5: Solve for x
    x = 27,581,898,792.27/190,047.49
  6. Step 6: Final answer
    x = 145,131.61

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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.