Home / 190,136.28-262,415.52-109,548.36

Finding the Fourth Proportional to 190,136.28, 262,415.52 and 109,548.36

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Solution

The fourth proportional to 190,136.28, 262,415.52 and 109,548.36 is: 151,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,136.28 : 262,415.52 = 109,548.36 : x
  2. Step 2: Convert to fraction form
    190,136.28/262,415.52 = 109,548.36/x
  3. Step 3: Cross multiply
    190,136.28x = 262,415.52 × 109,548.36
  4. Step 4: Simplify right side
    190,136.28x = 28,747,189,854.55
  5. Step 5: Solve for x
    x = 28,747,189,854.55/190,136.28
  6. Step 6: Final answer
    x = 151,192.55

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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.