Home / 163,185.92-225,200-91,571.12

Finding the Fourth Proportional to 163,185.92, 225,200 and 91,571.12

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Solution

The fourth proportional to 163,185.92, 225,200 and 91,571.12 is: 126,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,185.92 : 225,200 = 91,571.12 : x
  2. Step 2: Convert to fraction form
    163,185.92/225,200 = 91,571.12/x
  3. Step 3: Cross multiply
    163,185.92x = 225,200 × 91,571.12
  4. Step 4: Simplify right side
    163,185.92x = 20,621,816,224
  5. Step 5: Solve for x
    x = 20,621,816,224/163,185.92
  6. Step 6: Final answer
    x = 126,370.07

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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.