Home / 143,478.88-215,219.40-49,984.48

Finding the Fourth Proportional to 143,478.88, 215,219.40 and 49,984.48

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Solution

The fourth proportional to 143,478.88, 215,219.40 and 49,984.48 is: 74,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,478.88 : 215,219.40 = 49,984.48 : x
  2. Step 2: Convert to fraction form
    143,478.88/215,219.40 = 49,984.48/x
  3. Step 3: Cross multiply
    143,478.88x = 215,219.40 × 49,984.48
  4. Step 4: Simplify right side
    143,478.88x = 10,757,629,794.91
  5. Step 5: Solve for x
    x = 10,757,629,794.91/143,478.88
  6. Step 6: Final answer
    x = 74,977.10

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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.