Home / 143,144.40-214,279.20-111,651.60

Finding the Fourth Proportional to 143,144.40, 214,279.20 and 111,651.60

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Solution

The fourth proportional to 143,144.40, 214,279.20 and 111,651.60 is: 167,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,144.40 : 214,279.20 = 111,651.60 : x
  2. Step 2: Convert to fraction form
    143,144.40/214,279.20 = 111,651.60/x
  3. Step 3: Cross multiply
    143,144.40x = 214,279.20 × 111,651.60
  4. Step 4: Simplify right side
    143,144.40x = 23,924,615,526.72
  5. Step 5: Solve for x
    x = 23,924,615,526.72/143,144.40
  6. Step 6: Final answer
    x = 167,136.23

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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.