Home / 143,817.34-198,481.97-107,455.69

Finding the Fourth Proportional to 143,817.34, 198,481.97 and 107,455.69

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Solution

The fourth proportional to 143,817.34, 198,481.97 and 107,455.69 is: 148,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,817.34 : 198,481.97 = 107,455.69 : x
  2. Step 2: Convert to fraction form
    143,817.34/198,481.97 = 107,455.69/x
  3. Step 3: Cross multiply
    143,817.34x = 198,481.97 × 107,455.69
  4. Step 4: Simplify right side
    143,817.34x = 21,328,017,038.91
  5. Step 5: Solve for x
    x = 21,328,017,038.91/143,817.34
  6. Step 6: Final answer
    x = 148,299.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.