Home / 99,512.03-148,857.98-90,753.09

Finding the Fourth Proportional to 99,512.03, 148,857.98 and 90,753.09

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Solution

The fourth proportional to 99,512.03, 148,857.98 and 90,753.09 is: 135,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512.03 : 148,857.98 = 90,753.09 : x
  2. Step 2: Convert to fraction form
    99,512.03/148,857.98 = 90,753.09/x
  3. Step 3: Cross multiply
    99,512.03x = 148,857.98 × 90,753.09
  4. Step 4: Simplify right side
    99,512.03x = 13,509,321,202.39
  5. Step 5: Solve for x
    x = 13,509,321,202.39/99,512.03
  6. Step 6: Final answer
    x = 135,755.67

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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.