Home / 103,625.12-155,437.70-28,745.27

Finding the Fourth Proportional to 103,625.12, 155,437.70 and 28,745.27

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Solution

The fourth proportional to 103,625.12, 155,437.70 and 28,745.27 is: 43,117.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.12 : 155,437.70 = 28,745.27 : x
  2. Step 2: Convert to fraction form
    103,625.12/155,437.70 = 28,745.27/x
  3. Step 3: Cross multiply
    103,625.12x = 155,437.70 × 28,745.27
  4. Step 4: Simplify right side
    103,625.12x = 4,468,098,654.68
  5. Step 5: Solve for x
    x = 4,468,098,654.68/103,625.12
  6. Step 6: Final answer
    x = 43,117.91

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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.