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Finding the Fourth Proportional to 143,151.58, 214,565.37 and 72,882.46

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Solution

The fourth proportional to 143,151.58, 214,565.37 and 72,882.46 is: 109,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151.58 : 214,565.37 = 72,882.46 : x
  2. Step 2: Convert to fraction form
    143,151.58/214,565.37 = 72,882.46/x
  3. Step 3: Cross multiply
    143,151.58x = 214,565.37 × 72,882.46
  4. Step 4: Simplify right side
    143,151.58x = 15,638,051,996.41
  5. Step 5: Solve for x
    x = 15,638,051,996.41/143,151.58
  6. Step 6: Final answer
    x = 109,241.21

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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.