Home / 148,272.40-222,106.20-91,939.60

Finding the Fourth Proportional to 148,272.40, 222,106.20 and 91,939.60

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Solution

The fourth proportional to 148,272.40, 222,106.20 and 91,939.60 is: 137,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,272.40 : 222,106.20 = 91,939.60 : x
  2. Step 2: Convert to fraction form
    148,272.40/222,106.20 = 91,939.60/x
  3. Step 3: Cross multiply
    148,272.40x = 222,106.20 × 91,939.60
  4. Step 4: Simplify right side
    148,272.40x = 20,420,355,185.52
  5. Step 5: Solve for x
    x = 20,420,355,185.52/148,272.40
  6. Step 6: Final answer
    x = 137,721.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.