Home / 109,632.80-164,449.20-43,075.10

Finding the Fourth Proportional to 109,632.80, 164,449.20 and 43,075.10

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Solution

The fourth proportional to 109,632.80, 164,449.20 and 43,075.10 is: 64,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,632.80 : 164,449.20 = 43,075.10 : x
  2. Step 2: Convert to fraction form
    109,632.80/164,449.20 = 43,075.10/x
  3. Step 3: Cross multiply
    109,632.80x = 164,449.20 × 43,075.10
  4. Step 4: Simplify right side
    109,632.80x = 7,083,665,734.92
  5. Step 5: Solve for x
    x = 7,083,665,734.92/109,632.80
  6. Step 6: Final answer
    x = 64,612.65

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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.