Home / 143,020.62-197,372.90-79,364.34

Finding the Fourth Proportional to 143,020.62, 197,372.90 and 79,364.34

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Solution

The fourth proportional to 143,020.62, 197,372.90 and 79,364.34 is: 109,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,020.62 : 197,372.90 = 79,364.34 : x
  2. Step 2: Convert to fraction form
    143,020.62/197,372.90 = 79,364.34/x
  3. Step 3: Cross multiply
    143,020.62x = 197,372.90 × 79,364.34
  4. Step 4: Simplify right side
    143,020.62x = 15,664,370,140.80
  5. Step 5: Solve for x
    x = 15,664,370,140.80/143,020.62
  6. Step 6: Final answer
    x = 109,525.26

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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.