Home / 144,099.85-198,857.59-80,437.64

Finding the Fourth Proportional to 144,099.85, 198,857.59 and 80,437.64

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Solution

The fourth proportional to 144,099.85, 198,857.59 and 80,437.64 is: 111,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,099.85 : 198,857.59 = 80,437.64 : x
  2. Step 2: Convert to fraction form
    144,099.85/198,857.59 = 80,437.64/x
  3. Step 3: Cross multiply
    144,099.85x = 198,857.59 × 80,437.64
  4. Step 4: Simplify right side
    144,099.85x = 15,995,634,833.50
  5. Step 5: Solve for x
    x = 15,995,634,833.50/144,099.85
  6. Step 6: Final answer
    x = 111,003.83

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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.