Home / 104,410.69-143,977.84-61,961.02

Finding the Fourth Proportional to 104,410.69, 143,977.84 and 61,961.02

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Solution

The fourth proportional to 104,410.69, 143,977.84 and 61,961.02 is: 85,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,410.69 : 143,977.84 = 61,961.02 : x
  2. Step 2: Convert to fraction form
    104,410.69/143,977.84 = 61,961.02/x
  3. Step 3: Cross multiply
    104,410.69x = 143,977.84 × 61,961.02
  4. Step 4: Simplify right side
    104,410.69x = 8,921,013,823.80
  5. Step 5: Solve for x
    x = 8,921,013,823.80/104,410.69
  6. Step 6: Final answer
    x = 85,441.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.