Home / 276,145.80-414,218.70-89,157.30

Finding the Fourth Proportional to 276,145.80, 414,218.70 and 89,157.30

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Solution

The fourth proportional to 276,145.80, 414,218.70 and 89,157.30 is: 133,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,145.80 : 414,218.70 = 89,157.30 : x
  2. Step 2: Convert to fraction form
    276,145.80/414,218.70 = 89,157.30/x
  3. Step 3: Cross multiply
    276,145.80x = 414,218.70 × 89,157.30
  4. Step 4: Simplify right side
    276,145.80x = 36,930,620,901.51
  5. Step 5: Solve for x
    x = 36,930,620,901.51/276,145.80
  6. Step 6: Final answer
    x = 133,735.95

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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.