Home / 199,008.13-298,511.51-80,679.19

Finding the Fourth Proportional to 199,008.13, 298,511.51 and 80,679.19

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Solution

The fourth proportional to 199,008.13, 298,511.51 and 80,679.19 is: 121,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,008.13 : 298,511.51 = 80,679.19 : x
  2. Step 2: Convert to fraction form
    199,008.13/298,511.51 = 80,679.19/x
  3. Step 3: Cross multiply
    199,008.13x = 298,511.51 × 80,679.19
  4. Step 4: Simplify right side
    199,008.13x = 24,083,666,287.90
  5. Step 5: Solve for x
    x = 24,083,666,287.90/199,008.13
  6. Step 6: Final answer
    x = 121,018.51

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1.5x scale

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.