Home / 109,640.20-164,460.30-108,603.40

Finding the Fourth Proportional to 109,640.20, 164,460.30 and 108,603.40

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Solution

The fourth proportional to 109,640.20, 164,460.30 and 108,603.40 is: 162,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.20 : 164,460.30 = 108,603.40 : x
  2. Step 2: Convert to fraction form
    109,640.20/164,460.30 = 108,603.40/x
  3. Step 3: Cross multiply
    109,640.20x = 164,460.30 × 108,603.40
  4. Step 4: Simplify right side
    109,640.20x = 17,860,947,745.02
  5. Step 5: Solve for x
    x = 17,860,947,745.02/109,640.20
  6. Step 6: Final answer
    x = 162,905.10

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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.