Home / 142,790.40-214,104.60-54,046.80

Finding the Fourth Proportional to 142,790.40, 214,104.60 and 54,046.80

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Solution

The fourth proportional to 142,790.40, 214,104.60 and 54,046.80 is: 81,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,790.40 : 214,104.60 = 54,046.80 : x
  2. Step 2: Convert to fraction form
    142,790.40/214,104.60 = 54,046.80/x
  3. Step 3: Cross multiply
    142,790.40x = 214,104.60 × 54,046.80
  4. Step 4: Simplify right side
    142,790.40x = 11,571,668,495.28
  5. Step 5: Solve for x
    x = 11,571,668,495.28/142,790.40
  6. Step 6: Final answer
    x = 81,039.54

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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.