Home / 142,791.20-214,186.80-109,613.60

Finding the Fourth Proportional to 142,791.20, 214,186.80 and 109,613.60

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Solution

The fourth proportional to 142,791.20, 214,186.80 and 109,613.60 is: 164,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,791.20 : 214,186.80 = 109,613.60 : x
  2. Step 2: Convert to fraction form
    142,791.20/214,186.80 = 109,613.60/x
  3. Step 3: Cross multiply
    142,791.20x = 214,186.80 × 109,613.60
  4. Step 4: Simplify right side
    142,791.20x = 23,477,786,220.48
  5. Step 5: Solve for x
    x = 23,477,786,220.48/142,791.20
  6. Step 6: Final answer
    x = 164,420.40

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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.