Home / 68,122.14-102,187.53-21,376.86

Finding the Fourth Proportional to 68,122.14, 102,187.53 and 21,376.86

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Solution

The fourth proportional to 68,122.14, 102,187.53 and 21,376.86 is: 32,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,122.14 : 102,187.53 = 21,376.86 : x
  2. Step 2: Convert to fraction form
    68,122.14/102,187.53 = 21,376.86/x
  3. Step 3: Cross multiply
    68,122.14x = 102,187.53 × 21,376.86
  4. Step 4: Simplify right side
    68,122.14x = 2,184,448,522.56
  5. Step 5: Solve for x
    x = 2,184,448,522.56/68,122.14
  6. Step 6: Final answer
    x = 32,066.65

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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.