Home / 143,414.50-215,199.51-69,542.50

Finding the Fourth Proportional to 143,414.50, 215,199.51 and 69,542.50

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Solution

The fourth proportional to 143,414.50, 215,199.51 and 69,542.50 is: 104,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,414.50 : 215,199.51 = 69,542.50 : x
  2. Step 2: Convert to fraction form
    143,414.50/215,199.51 = 69,542.50/x
  3. Step 3: Cross multiply
    143,414.50x = 215,199.51 × 69,542.50
  4. Step 4: Simplify right side
    143,414.50x = 14,965,511,924.18
  5. Step 5: Solve for x
    x = 14,965,511,924.18/143,414.50
  6. Step 6: Final answer
    x = 104,351.46

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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.