Home / 207,414.32-311,106.44-81,030.84

Finding the Fourth Proportional to 207,414.32, 311,106.44 and 81,030.84

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Solution

The fourth proportional to 207,414.32, 311,106.44 and 81,030.84 is: 121,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,414.32 : 311,106.44 = 81,030.84 : x
  2. Step 2: Convert to fraction form
    207,414.32/311,106.44 = 81,030.84/x
  3. Step 3: Cross multiply
    207,414.32x = 311,106.44 × 81,030.84
  4. Step 4: Simplify right side
    207,414.32x = 25,209,216,162.61
  5. Step 5: Solve for x
    x = 25,209,216,162.61/207,414.32
  6. Step 6: Final answer
    x = 121,540.38

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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.