Home / 103,661.62-155,495.67-28,782.52

Finding the Fourth Proportional to 103,661.62, 155,495.67 and 28,782.52

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Solution

The fourth proportional to 103,661.62, 155,495.67 and 28,782.52 is: 43,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.62 : 155,495.67 = 28,782.52 : x
  2. Step 2: Convert to fraction form
    103,661.62/155,495.67 = 28,782.52/x
  3. Step 3: Cross multiply
    103,661.62x = 155,495.67 × 28,782.52
  4. Step 4: Simplify right side
    103,661.62x = 4,475,557,231.69
  5. Step 5: Solve for x
    x = 4,475,557,231.69/103,661.62
  6. Step 6: Final answer
    x = 43,174.68

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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.