Home / 68,200.02-102,290.31-21,451.68

Finding the Fourth Proportional to 68,200.02, 102,290.31 and 21,451.68

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Solution

The fourth proportional to 68,200.02, 102,290.31 and 21,451.68 is: 32,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,200.02 : 102,290.31 = 21,451.68 : x
  2. Step 2: Convert to fraction form
    68,200.02/102,290.31 = 21,451.68/x
  3. Step 3: Cross multiply
    68,200.02x = 102,290.31 × 21,451.68
  4. Step 4: Simplify right side
    68,200.02x = 2,194,298,997.22
  5. Step 5: Solve for x
    x = 2,194,298,997.22/68,200.02
  6. Step 6: Final answer
    x = 32,174.46

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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.