Home / 154,220.80-231,331.20-119,185.60

Finding the Fourth Proportional to 154,220.80, 231,331.20 and 119,185.60

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Solution

The fourth proportional to 154,220.80, 231,331.20 and 119,185.60 is: 178,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.80 : 231,331.20 = 119,185.60 : x
  2. Step 2: Convert to fraction form
    154,220.80/231,331.20 = 119,185.60/x
  3. Step 3: Cross multiply
    154,220.80x = 231,331.20 × 119,185.60
  4. Step 4: Simplify right side
    154,220.80x = 27,571,347,870.72
  5. Step 5: Solve for x
    x = 27,571,347,870.72/154,220.80
  6. Step 6: Final answer
    x = 178,778.40

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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.