Home / 99,190.72-148,790.58-28,118.44

Finding the Fourth Proportional to 99,190.72, 148,790.58 and 28,118.44

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Solution

The fourth proportional to 99,190.72, 148,790.58 and 28,118.44 is: 42,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.72 : 148,790.58 = 28,118.44 : x
  2. Step 2: Convert to fraction form
    99,190.72/148,790.58 = 28,118.44/x
  3. Step 3: Cross multiply
    99,190.72x = 148,790.58 × 28,118.44
  4. Step 4: Simplify right side
    99,190.72x = 4,183,758,996.30
  5. Step 5: Solve for x
    x = 4,183,758,996.30/99,190.72
  6. Step 6: Final answer
    x = 42,178.94

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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.