Home / 199,484.80-298,968.66-81,018.52

Finding the Fourth Proportional to 199,484.80, 298,968.66 and 81,018.52

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Solution

The fourth proportional to 199,484.80, 298,968.66 and 81,018.52 is: 121,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,484.80 : 298,968.66 = 81,018.52 : x
  2. Step 2: Convert to fraction form
    199,484.80/298,968.66 = 81,018.52/x
  3. Step 3: Cross multiply
    199,484.80x = 298,968.66 × 81,018.52
  4. Step 4: Simplify right side
    199,484.80x = 24,221,998,359.58
  5. Step 5: Solve for x
    x = 24,221,998,359.58/199,484.80
  6. Step 6: Final answer
    x = 121,422.78

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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.