Home / 68,199.44-102,314.42-20,818.74

Finding the Fourth Proportional to 68,199.44, 102,314.42 and 20,818.74

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Solution

The fourth proportional to 68,199.44, 102,314.42 and 20,818.74 is: 31,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,199.44 : 102,314.42 = 20,818.74 : x
  2. Step 2: Convert to fraction form
    68,199.44/102,314.42 = 20,818.74/x
  3. Step 3: Cross multiply
    68,199.44x = 102,314.42 × 20,818.74
  4. Step 4: Simplify right side
    68,199.44x = 2,130,057,308.23
  5. Step 5: Solve for x
    x = 2,130,057,308.23/68,199.44
  6. Step 6: Final answer
    x = 31,232.77

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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.