Home / 122,290.80-183,436.20-120,735.60

Finding the Fourth Proportional to 122,290.80, 183,436.20 and 120,735.60

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Solution

The fourth proportional to 122,290.80, 183,436.20 and 120,735.60 is: 181,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,290.80 : 183,436.20 = 120,735.60 : x
  2. Step 2: Convert to fraction form
    122,290.80/183,436.20 = 120,735.60/x
  3. Step 3: Cross multiply
    122,290.80x = 183,436.20 × 120,735.60
  4. Step 4: Simplify right side
    122,290.80x = 22,147,279,668.72
  5. Step 5: Solve for x
    x = 22,147,279,668.72/122,290.80
  6. Step 6: Final answer
    x = 181,103.40

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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.