Home / 190,399.20-262,736.16-105,514.32

Finding the Fourth Proportional to 190,399.20, 262,736.16 and 105,514.32

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Solution

The fourth proportional to 190,399.20, 262,736.16 and 105,514.32 is: 145,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,399.20 : 262,736.16 = 105,514.32 : x
  2. Step 2: Convert to fraction form
    190,399.20/262,736.16 = 105,514.32/x
  3. Step 3: Cross multiply
    190,399.20x = 262,736.16 × 105,514.32
  4. Step 4: Simplify right side
    190,399.20x = 27,722,427,261.81
  5. Step 5: Solve for x
    x = 27,722,427,261.81/190,399.20
  6. Step 6: Final answer
    x = 145,601.60

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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.