Home / 145,249.20-218,311.20-126,003.60

Finding the Fourth Proportional to 145,249.20, 218,311.20 and 126,003.60

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Solution

The fourth proportional to 145,249.20, 218,311.20 and 126,003.60 is: 189,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,249.20 : 218,311.20 = 126,003.60 : x
  2. Step 2: Convert to fraction form
    145,249.20/218,311.20 = 126,003.60/x
  3. Step 3: Cross multiply
    145,249.20x = 218,311.20 × 126,003.60
  4. Step 4: Simplify right side
    145,249.20x = 27,507,997,120.32
  5. Step 5: Solve for x
    x = 27,507,997,120.32/145,249.20
  6. Step 6: Final answer
    x = 189,384.84

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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.