Home / 68,182.68-102,257.28-21,435.42

Finding the Fourth Proportional to 68,182.68, 102,257.28 and 21,435.42

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Solution

The fourth proportional to 68,182.68, 102,257.28 and 21,435.42 is: 32,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,182.68 : 102,257.28 = 21,435.42 : x
  2. Step 2: Convert to fraction form
    68,182.68/102,257.28 = 21,435.42/x
  3. Step 3: Cross multiply
    68,182.68x = 102,257.28 × 21,435.42
  4. Step 4: Simplify right side
    68,182.68x = 2,191,927,744.86
  5. Step 5: Solve for x
    x = 2,191,927,744.86/68,182.68
  6. Step 6: Final answer
    x = 32,147.87

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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.