Home / 144,043.40-198,761.55-80,383.88

Finding the Fourth Proportional to 144,043.40, 198,761.55 and 80,383.88

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Solution

The fourth proportional to 144,043.40, 198,761.55 and 80,383.88 is: 110,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,043.40 : 198,761.55 = 80,383.88 : x
  2. Step 2: Convert to fraction form
    144,043.40/198,761.55 = 80,383.88/x
  3. Step 3: Cross multiply
    144,043.40x = 198,761.55 × 80,383.88
  4. Step 4: Simplify right side
    144,043.40x = 15,977,224,583.81
  5. Step 5: Solve for x
    x = 15,977,224,583.81/144,043.40
  6. Step 6: Final answer
    x = 110,919.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.