Home / 190,145.28-262,578.32-122,280.12

Finding the Fourth Proportional to 190,145.28, 262,578.32 and 122,280.12

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Solution

The fourth proportional to 190,145.28, 262,578.32 and 122,280.12 is: 168,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,145.28 : 262,578.32 = 122,280.12 : x
  2. Step 2: Convert to fraction form
    190,145.28/262,578.32 = 122,280.12/x
  3. Step 3: Cross multiply
    190,145.28x = 262,578.32 × 122,280.12
  4. Step 4: Simplify right side
    190,145.28x = 32,108,107,867.60
  5. Step 5: Solve for x
    x = 32,108,107,867.60/190,145.28
  6. Step 6: Final answer
    x = 168,860.93

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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.