Home / 103,919.24-143,408.52-56,172.56

Finding the Fourth Proportional to 103,919.24, 143,408.52 and 56,172.56

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Solution

The fourth proportional to 103,919.24, 143,408.52 and 56,172.56 is: 77,518.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919.24 : 143,408.52 = 56,172.56 : x
  2. Step 2: Convert to fraction form
    103,919.24/143,408.52 = 56,172.56/x
  3. Step 3: Cross multiply
    103,919.24x = 143,408.52 × 56,172.56
  4. Step 4: Simplify right side
    103,919.24x = 8,055,623,694.21
  5. Step 5: Solve for x
    x = 8,055,623,694.21/103,919.24
  6. Step 6: Final answer
    x = 77,518.12

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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.