Home / 190,115.56-262,332-105,232.42

Finding the Fourth Proportional to 190,115.56, 262,332 and 105,232.42

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Solution

The fourth proportional to 190,115.56, 262,332 and 105,232.42 is: 145,205.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,115.56 : 262,332 = 105,232.42 : x
  2. Step 2: Convert to fraction form
    190,115.56/262,332 = 105,232.42/x
  3. Step 3: Cross multiply
    190,115.56x = 262,332 × 105,232.42
  4. Step 4: Simplify right side
    190,115.56x = 27,605,831,203.44
  5. Step 5: Solve for x
    x = 27,605,831,203.44/190,115.56
  6. Step 6: Final answer
    x = 145,205.53

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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.