Home / 190,103.94-262,335.16-105,215.94

Finding the Fourth Proportional to 190,103.94, 262,335.16 and 105,215.94

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Solution

The fourth proportional to 190,103.94, 262,335.16 and 105,215.94 is: 145,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,103.94 : 262,335.16 = 105,215.94 : x
  2. Step 2: Convert to fraction form
    190,103.94/262,335.16 = 105,215.94/x
  3. Step 3: Cross multiply
    190,103.94x = 262,335.16 × 105,215.94
  4. Step 4: Simplify right side
    190,103.94x = 27,601,840,454.45
  5. Step 5: Solve for x
    x = 27,601,840,454.45/190,103.94
  6. Step 6: Final answer
    x = 145,193.42

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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.