Home / 143,020.60-214,433.70-54,260.80

Finding the Fourth Proportional to 143,020.60, 214,433.70 and 54,260.80

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Solution

The fourth proportional to 143,020.60, 214,433.70 and 54,260.80 is: 81,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,020.60 : 214,433.70 = 54,260.80 : x
  2. Step 2: Convert to fraction form
    143,020.60/214,433.70 = 54,260.80/x
  3. Step 3: Cross multiply
    143,020.60x = 214,433.70 × 54,260.80
  4. Step 4: Simplify right side
    143,020.60x = 11,635,344,108.96
  5. Step 5: Solve for x
    x = 11,635,344,108.96/143,020.60
  6. Step 6: Final answer
    x = 81,354.32

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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.