Home / 68,075.62-102,118.30-18,155.46

Finding the Fourth Proportional to 68,075.62, 102,118.30 and 18,155.46

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Solution

The fourth proportional to 68,075.62, 102,118.30 and 18,155.46 is: 27,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.62 : 102,118.30 = 18,155.46 : x
  2. Step 2: Convert to fraction form
    68,075.62/102,118.30 = 18,155.46/x
  3. Step 3: Cross multiply
    68,075.62x = 102,118.30 × 18,155.46
  4. Step 4: Simplify right side
    68,075.62x = 1,854,004,710.92
  5. Step 5: Solve for x
    x = 1,854,004,710.92/68,075.62
  6. Step 6: Final answer
    x = 27,234.49

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1.5x scale

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.