Home / 109,745.40-164,519.55-43,230.90

Finding the Fourth Proportional to 109,745.40, 164,519.55 and 43,230.90

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Solution

The fourth proportional to 109,745.40, 164,519.55 and 43,230.90 is: 64,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,745.40 : 164,519.55 = 43,230.90 : x
  2. Step 2: Convert to fraction form
    109,745.40/164,519.55 = 43,230.90/x
  3. Step 3: Cross multiply
    109,745.40x = 164,519.55 × 43,230.90
  4. Step 4: Simplify right side
    109,745.40x = 7,112,328,214.10
  5. Step 5: Solve for x
    x = 7,112,328,214.10/109,745.40
  6. Step 6: Final answer
    x = 64,807.53

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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.