Home / 99,896.40-149,844.60-53,240.40

Finding the Fourth Proportional to 99,896.40, 149,844.60 and 53,240.40

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Solution

The fourth proportional to 99,896.40, 149,844.60 and 53,240.40 is: 79,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,896.40 : 149,844.60 = 53,240.40 : x
  2. Step 2: Convert to fraction form
    99,896.40/149,844.60 = 53,240.40/x
  3. Step 3: Cross multiply
    99,896.40x = 149,844.60 × 53,240.40
  4. Step 4: Simplify right side
    99,896.40x = 7,977,786,441.84
  5. Step 5: Solve for x
    x = 7,977,786,441.84/99,896.40
  6. Step 6: Final answer
    x = 79,860.60

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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.