Home / 154,220.20-231,416.70-65,458.60

Finding the Fourth Proportional to 154,220.20, 231,416.70 and 65,458.60

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Solution

The fourth proportional to 154,220.20, 231,416.70 and 65,458.60 is: 98,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.20 : 231,416.70 = 65,458.60 : x
  2. Step 2: Convert to fraction form
    154,220.20/231,416.70 = 65,458.60/x
  3. Step 3: Cross multiply
    154,220.20x = 231,416.70 × 65,458.60
  4. Step 4: Simplify right side
    154,220.20x = 15,148,213,198.62
  5. Step 5: Solve for x
    x = 15,148,213,198.62/154,220.20
  6. Step 6: Final answer
    x = 98,224.57

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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.