Home / 199,145.96-298,686.54-80,812.52

Finding the Fourth Proportional to 199,145.96, 298,686.54 and 80,812.52

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Solution

The fourth proportional to 199,145.96, 298,686.54 and 80,812.52 is: 121,205.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,145.96 : 298,686.54 = 80,812.52 : x
  2. Step 2: Convert to fraction form
    199,145.96/298,686.54 = 80,812.52/x
  3. Step 3: Cross multiply
    199,145.96x = 298,686.54 × 80,812.52
  4. Step 4: Simplify right side
    199,145.96x = 24,137,611,987.48
  5. Step 5: Solve for x
    x = 24,137,611,987.48/199,145.96
  6. Step 6: Final answer
    x = 121,205.63

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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.