Home / 143,977.28-215,967.84-50,485.76

Finding the Fourth Proportional to 143,977.28, 215,967.84 and 50,485.76

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Solution

The fourth proportional to 143,977.28, 215,967.84 and 50,485.76 is: 75,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,977.28 : 215,967.84 = 50,485.76 : x
  2. Step 2: Convert to fraction form
    143,977.28/215,967.84 = 50,485.76/x
  3. Step 3: Cross multiply
    143,977.28x = 215,967.84 × 50,485.76
  4. Step 4: Simplify right side
    143,977.28x = 10,903,300,537.96
  5. Step 5: Solve for x
    x = 10,903,300,537.96/143,977.28
  6. Step 6: Final answer
    x = 75,729.31

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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.