Home / 103,734.09-143,147.55-58,410.54

Finding the Fourth Proportional to 103,734.09, 143,147.55 and 58,410.54

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Solution

The fourth proportional to 103,734.09, 143,147.55 and 58,410.54 is: 80,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,734.09 : 143,147.55 = 58,410.54 : x
  2. Step 2: Convert to fraction form
    103,734.09/143,147.55 = 58,410.54/x
  3. Step 3: Cross multiply
    103,734.09x = 143,147.55 × 58,410.54
  4. Step 4: Simplify right side
    103,734.09x = 8,361,325,695.18
  5. Step 5: Solve for x
    x = 8,361,325,695.18/103,734.09
  6. Step 6: Final answer
    x = 80,603.45

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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.