Home / 143,330.40-214,914.60-54,586.80

Finding the Fourth Proportional to 143,330.40, 214,914.60 and 54,586.80

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Solution

The fourth proportional to 143,330.40, 214,914.60 and 54,586.80 is: 81,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,330.40 : 214,914.60 = 54,586.80 : x
  2. Step 2: Convert to fraction form
    143,330.40/214,914.60 = 54,586.80/x
  3. Step 3: Cross multiply
    143,330.40x = 214,914.60 × 54,586.80
  4. Step 4: Simplify right side
    143,330.40x = 11,731,500,287.28
  5. Step 5: Solve for x
    x = 11,731,500,287.28/143,330.40
  6. Step 6: Final answer
    x = 81,849.35

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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.