Home / 163,133.19-225,134.15-91,517.85

Finding the Fourth Proportional to 163,133.19, 225,134.15 and 91,517.85

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Solution

The fourth proportional to 163,133.19, 225,134.15 and 91,517.85 is: 126,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,133.19 : 225,134.15 = 91,517.85 : x
  2. Step 2: Convert to fraction form
    163,133.19/225,134.15 = 91,517.85/x
  3. Step 3: Cross multiply
    163,133.19x = 225,134.15 × 91,517.85
  4. Step 4: Simplify right side
    163,133.19x = 20,603,792,911.99
  5. Step 5: Solve for x
    x = 20,603,792,911.99/163,133.19
  6. Step 6: Final answer
    x = 126,300.44

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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.