Home / 109,447.20-164,079.68-46,315.80

Finding the Fourth Proportional to 109,447.20, 164,079.68 and 46,315.80

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Solution

The fourth proportional to 109,447.20, 164,079.68 and 46,315.80 is: 69,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,447.20 : 164,079.68 = 46,315.80 : x
  2. Step 2: Convert to fraction form
    109,447.20/164,079.68 = 46,315.80/x
  3. Step 3: Cross multiply
    109,447.20x = 164,079.68 × 46,315.80
  4. Step 4: Simplify right side
    109,447.20x = 7,599,481,411.37
  5. Step 5: Solve for x
    x = 7,599,481,411.37/109,447.20
  6. Step 6: Final answer
    x = 69,435.14

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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.