Home / 144,451.85-199,342.40-80,789.60

Finding the Fourth Proportional to 144,451.85, 199,342.40 and 80,789.60

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Solution

The fourth proportional to 144,451.85, 199,342.40 and 80,789.60 is: 111,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,451.85 : 199,342.40 = 80,789.60 : x
  2. Step 2: Convert to fraction form
    144,451.85/199,342.40 = 80,789.60/x
  3. Step 3: Cross multiply
    144,451.85x = 199,342.40 × 80,789.60
  4. Step 4: Simplify right side
    144,451.85x = 16,104,791,762.33
  5. Step 5: Solve for x
    x = 16,104,791,762.33/144,451.85
  6. Step 6: Final answer
    x = 111,489.00

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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.