Home / 143,254.54-214,678.07-105,517.85

Finding the Fourth Proportional to 143,254.54, 214,678.07 and 105,517.85

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Solution

The fourth proportional to 143,254.54, 214,678.07 and 105,517.85 is: 158,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,254.54 : 214,678.07 = 105,517.85 : x
  2. Step 2: Convert to fraction form
    143,254.54/214,678.07 = 105,517.85/x
  3. Step 3: Cross multiply
    143,254.54x = 214,678.07 × 105,517.85
  4. Step 4: Simplify right side
    143,254.54x = 22,652,367,860.96
  5. Step 5: Solve for x
    x = 22,652,367,860.96/143,254.54
  6. Step 6: Final answer
    x = 158,126.71

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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.