Home / 68,173.14-102,264.03-21,427.86

Finding the Fourth Proportional to 68,173.14, 102,264.03 and 21,427.86

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Solution

The fourth proportional to 68,173.14, 102,264.03 and 21,427.86 is: 32,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,173.14 : 102,264.03 = 21,427.86 : x
  2. Step 2: Convert to fraction form
    68,173.14/102,264.03 = 21,427.86/x
  3. Step 3: Cross multiply
    68,173.14x = 102,264.03 × 21,427.86
  4. Step 4: Simplify right side
    68,173.14x = 2,191,299,317.88
  5. Step 5: Solve for x
    x = 2,191,299,317.88/68,173.14
  6. Step 6: Final answer
    x = 32,143.15

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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.