Home / 163,768.75-225,997.63-91,170.68

Finding the Fourth Proportional to 163,768.75, 225,997.63 and 91,170.68

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Solution

The fourth proportional to 163,768.75, 225,997.63 and 91,170.68 is: 125,813.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,768.75 : 225,997.63 = 91,170.68 : x
  2. Step 2: Convert to fraction form
    163,768.75/225,997.63 = 91,170.68/x
  3. Step 3: Cross multiply
    163,768.75x = 225,997.63 × 91,170.68
  4. Step 4: Simplify right side
    163,768.75x = 20,604,356,247.57
  5. Step 5: Solve for x
    x = 20,604,356,247.57/163,768.75
  6. Step 6: Final answer
    x = 125,813.73

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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.