Home / 103,669.93-155,504.62-28,790.11

Finding the Fourth Proportional to 103,669.93, 155,504.62 and 28,790.11

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Solution

The fourth proportional to 103,669.93, 155,504.62 and 28,790.11 is: 43,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,669.93 : 155,504.62 = 28,790.11 : x
  2. Step 2: Convert to fraction form
    103,669.93/155,504.62 = 28,790.11/x
  3. Step 3: Cross multiply
    103,669.93x = 155,504.62 × 28,790.11
  4. Step 4: Simplify right side
    103,669.93x = 4,476,995,115.31
  5. Step 5: Solve for x
    x = 4,476,995,115.31/103,669.93
  6. Step 6: Final answer
    x = 43,185.09

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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.