Home / 190,331.25-262,665.74-105,448.31

Finding the Fourth Proportional to 190,331.25, 262,665.74 and 105,448.31

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Solution

The fourth proportional to 190,331.25, 262,665.74 and 105,448.31 is: 145,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,331.25 : 262,665.74 = 105,448.31 : x
  2. Step 2: Convert to fraction form
    190,331.25/262,665.74 = 105,448.31/x
  3. Step 3: Cross multiply
    190,331.25x = 262,665.74 × 105,448.31
  4. Step 4: Simplify right side
    190,331.25x = 27,697,658,507.32
  5. Step 5: Solve for x
    x = 27,697,658,507.32/190,331.25
  6. Step 6: Final answer
    x = 145,523.44

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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.