Home / 99,971.12-149,953.44-26,099.12

Finding the Fourth Proportional to 99,971.12, 149,953.44 and 26,099.12

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Solution

The fourth proportional to 99,971.12, 149,953.44 and 26,099.12 is: 39,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,971.12 : 149,953.44 = 26,099.12 : x
  2. Step 2: Convert to fraction form
    99,971.12/149,953.44 = 26,099.12/x
  3. Step 3: Cross multiply
    99,971.12x = 149,953.44 × 26,099.12
  4. Step 4: Simplify right side
    99,971.12x = 3,913,652,824.97
  5. Step 5: Solve for x
    x = 3,913,652,824.97/99,971.12
  6. Step 6: Final answer
    x = 39,147.83

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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.