Home / 281,178.03-421,722.41-131,522.19

Finding the Fourth Proportional to 281,178.03, 421,722.41 and 131,522.19

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Solution

The fourth proportional to 281,178.03, 421,722.41 and 131,522.19 is: 197,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,178.03 : 421,722.41 = 131,522.19 : x
  2. Step 2: Convert to fraction form
    281,178.03/421,722.41 = 131,522.19/x
  3. Step 3: Cross multiply
    281,178.03x = 421,722.41 × 131,522.19
  4. Step 4: Simplify right side
    281,178.03x = 55,465,854,277.67
  5. Step 5: Solve for x
    x = 55,465,854,277.67/281,178.03
  6. Step 6: Final answer
    x = 197,262.40

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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.