Home / 105,603.21-158,391.60-34,519.90

Finding the Fourth Proportional to 105,603.21, 158,391.60 and 34,519.90

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Solution

The fourth proportional to 105,603.21, 158,391.60 and 34,519.90 is: 51,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,603.21 : 158,391.60 = 34,519.90 : x
  2. Step 2: Convert to fraction form
    105,603.21/158,391.60 = 34,519.90/x
  3. Step 3: Cross multiply
    105,603.21x = 158,391.60 × 34,519.90
  4. Step 4: Simplify right side
    105,603.21x = 5,467,662,192.84
  5. Step 5: Solve for x
    x = 5,467,662,192.84/105,603.21
  6. Step 6: Final answer
    x = 51,775.53

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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.