Home / 149,257.04-205,908.08-100,843.34

Finding the Fourth Proportional to 149,257.04, 205,908.08 and 100,843.34

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Solution

The fourth proportional to 149,257.04, 205,908.08 and 100,843.34 is: 139,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,257.04 : 205,908.08 = 100,843.34 : x
  2. Step 2: Convert to fraction form
    149,257.04/205,908.08 = 100,843.34/x
  3. Step 3: Cross multiply
    149,257.04x = 205,908.08 × 100,843.34
  4. Step 4: Simplify right side
    149,257.04x = 20,764,456,986.43
  5. Step 5: Solve for x
    x = 20,764,456,986.43/149,257.04
  6. Step 6: Final answer
    x = 139,118.78

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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.