Home / 99,986.97-149,988.20-33,427.35

Finding the Fourth Proportional to 99,986.97, 149,988.20 and 33,427.35

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Solution

The fourth proportional to 99,986.97, 149,988.20 and 33,427.35 is: 50,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,986.97 : 149,988.20 = 33,427.35 : x
  2. Step 2: Convert to fraction form
    99,986.97/149,988.20 = 33,427.35/x
  3. Step 3: Cross multiply
    99,986.97x = 149,988.20 × 33,427.35
  4. Step 4: Simplify right side
    99,986.97x = 5,013,707,140.19
  5. Step 5: Solve for x
    x = 5,013,707,140.19/99,986.97
  6. Step 6: Final answer
    x = 50,143.61

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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.