Home / 276,145.20-414,161.10-76,415.40

Finding the Fourth Proportional to 276,145.20, 414,161.10 and 76,415.40

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Solution

The fourth proportional to 276,145.20, 414,161.10 and 76,415.40 is: 114,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,145.20 : 414,161.10 = 76,415.40 : x
  2. Step 2: Convert to fraction form
    276,145.20/414,161.10 = 76,415.40/x
  3. Step 3: Cross multiply
    276,145.20x = 414,161.10 × 76,415.40
  4. Step 4: Simplify right side
    276,145.20x = 31,648,286,120.94
  5. Step 5: Solve for x
    x = 31,648,286,120.94/276,145.20
  6. Step 6: Final answer
    x = 114,607.41

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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.