Home / 168,000.30-252,000.45-145,190.70

Finding the Fourth Proportional to 168,000.30, 252,000.45 and 145,190.70

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Solution

The fourth proportional to 168,000.30, 252,000.45 and 145,190.70 is: 217,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,000.30 : 252,000.45 = 145,190.70 : x
  2. Step 2: Convert to fraction form
    168,000.30/252,000.45 = 145,190.70/x
  3. Step 3: Cross multiply
    168,000.30x = 252,000.45 × 145,190.70
  4. Step 4: Simplify right side
    168,000.30x = 36,588,121,735.82
  5. Step 5: Solve for x
    x = 36,588,121,735.82/168,000.30
  6. Step 6: Final answer
    x = 217,786.05

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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.