Home / 144,343.58-199,188.79-80,682.44

Finding the Fourth Proportional to 144,343.58, 199,188.79 and 80,682.44

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Solution

The fourth proportional to 144,343.58, 199,188.79 and 80,682.44 is: 111,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,343.58 : 199,188.79 = 80,682.44 : x
  2. Step 2: Convert to fraction form
    144,343.58/199,188.79 = 80,682.44/x
  3. Step 3: Cross multiply
    144,343.58x = 199,188.79 × 80,682.44
  4. Step 4: Simplify right side
    144,343.58x = 16,071,036,400.20
  5. Step 5: Solve for x
    x = 16,071,036,400.20/144,343.58
  6. Step 6: Final answer
    x = 111,338.77

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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.