Home / 68,146.96-102,220.42-18,225.77

Finding the Fourth Proportional to 68,146.96, 102,220.42 and 18,225.77

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Solution

The fourth proportional to 68,146.96, 102,220.42 and 18,225.77 is: 27,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.96 : 102,220.42 = 18,225.77 : x
  2. Step 2: Convert to fraction form
    68,146.96/102,220.42 = 18,225.77/x
  3. Step 3: Cross multiply
    68,146.96x = 102,220.42 × 18,225.77
  4. Step 4: Simplify right side
    68,146.96x = 1,863,045,680.49
  5. Step 5: Solve for x
    x = 1,863,045,680.49/68,146.96
  6. Step 6: Final answer
    x = 27,338.65

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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.