Home / 103,625.06-155,437.57-28,745.20

Finding the Fourth Proportional to 103,625.06, 155,437.57 and 28,745.20

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Solution

The fourth proportional to 103,625.06, 155,437.57 and 28,745.20 is: 43,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.06 : 155,437.57 = 28,745.20 : x
  2. Step 2: Convert to fraction form
    103,625.06/155,437.57 = 28,745.20/x
  3. Step 3: Cross multiply
    103,625.06x = 155,437.57 × 28,745.20
  4. Step 4: Simplify right side
    103,625.06x = 4,468,084,037.16
  5. Step 5: Solve for x
    x = 4,468,084,037.16/103,625.06
  6. Step 6: Final answer
    x = 43,117.79

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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.