Home / 190,054.27-262,261.15-105,172.75

Finding the Fourth Proportional to 190,054.27, 262,261.15 and 105,172.75

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Solution

The fourth proportional to 190,054.27, 262,261.15 and 105,172.75 is: 145,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,054.27 : 262,261.15 = 105,172.75 : x
  2. Step 2: Convert to fraction form
    190,054.27/262,261.15 = 105,172.75/x
  3. Step 3: Cross multiply
    190,054.27x = 262,261.15 × 105,172.75
  4. Step 4: Simplify right side
    190,054.27x = 27,582,726,363.66
  5. Step 5: Solve for x
    x = 27,582,726,363.66/190,054.27
  6. Step 6: Final answer
    x = 145,130.79

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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.