Home / 68,137.04-102,197.76-18,221.03

Finding the Fourth Proportional to 68,137.04, 102,197.76 and 18,221.03

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Solution

The fourth proportional to 68,137.04, 102,197.76 and 18,221.03 is: 27,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,137.04 : 102,197.76 = 18,221.03 : x
  2. Step 2: Convert to fraction form
    68,137.04/102,197.76 = 18,221.03/x
  3. Step 3: Cross multiply
    68,137.04x = 102,197.76 × 18,221.03
  4. Step 4: Simplify right side
    68,137.04x = 1,862,148,450.89
  5. Step 5: Solve for x
    x = 1,862,148,450.89/68,137.04
  6. Step 6: Final answer
    x = 27,329.46

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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.