Home / 190,057.28-262,275.36-105,172.80

Finding the Fourth Proportional to 190,057.28, 262,275.36 and 105,172.80

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Solution

The fourth proportional to 190,057.28, 262,275.36 and 105,172.80 is: 145,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,057.28 : 262,275.36 = 105,172.80 : x
  2. Step 2: Convert to fraction form
    190,057.28/262,275.36 = 105,172.80/x
  3. Step 3: Cross multiply
    190,057.28x = 262,275.36 × 105,172.80
  4. Step 4: Simplify right side
    190,057.28x = 27,584,233,982.21
  5. Step 5: Solve for x
    x = 27,584,233,982.21/190,057.28
  6. Step 6: Final answer
    x = 145,136.42

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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.