Home / 104,172.36-143,757.63-56,426.10

Finding the Fourth Proportional to 104,172.36, 143,757.63 and 56,426.10

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Solution

The fourth proportional to 104,172.36, 143,757.63 and 56,426.10 is: 77,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,172.36 : 143,757.63 = 56,426.10 : x
  2. Step 2: Convert to fraction form
    104,172.36/143,757.63 = 56,426.10/x
  3. Step 3: Cross multiply
    104,172.36x = 143,757.63 × 56,426.10
  4. Step 4: Simplify right side
    104,172.36x = 8,111,682,406.14
  5. Step 5: Solve for x
    x = 8,111,682,406.14/104,172.36
  6. Step 6: Final answer
    x = 77,867.90

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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.