Home / 199,449.30-299,230.23-81,205.50

Finding the Fourth Proportional to 199,449.30, 299,230.23 and 81,205.50

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Solution

The fourth proportional to 199,449.30, 299,230.23 and 81,205.50 is: 121,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,449.30 : 299,230.23 = 81,205.50 : x
  2. Step 2: Convert to fraction form
    199,449.30/299,230.23 = 81,205.50/x
  3. Step 3: Cross multiply
    199,449.30x = 299,230.23 × 81,205.50
  4. Step 4: Simplify right side
    199,449.30x = 24,299,140,442.27
  5. Step 5: Solve for x
    x = 24,299,140,442.27/199,449.30
  6. Step 6: Final answer
    x = 121,831.16

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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.