Home / 109,745.80-164,618.70-43,188.10

Finding the Fourth Proportional to 109,745.80, 164,618.70 and 43,188.10

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Solution

The fourth proportional to 109,745.80, 164,618.70 and 43,188.10 is: 64,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,745.80 : 164,618.70 = 43,188.10 : x
  2. Step 2: Convert to fraction form
    109,745.80/164,618.70 = 43,188.10/x
  3. Step 3: Cross multiply
    109,745.80x = 164,618.70 × 43,188.10
  4. Step 4: Simplify right side
    109,745.80x = 7,109,568,877.47
  5. Step 5: Solve for x
    x = 7,109,568,877.47/109,745.80
  6. Step 6: Final answer
    x = 64,782.15

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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.