Home / 281,981.79-422,999.46-102,112.65

Finding the Fourth Proportional to 281,981.79, 422,999.46 and 102,112.65

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Solution

The fourth proportional to 281,981.79, 422,999.46 and 102,112.65 is: 153,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,981.79 : 422,999.46 = 102,112.65 : x
  2. Step 2: Convert to fraction form
    281,981.79/422,999.46 = 102,112.65/x
  3. Step 3: Cross multiply
    281,981.79x = 422,999.46 × 102,112.65
  4. Step 4: Simplify right side
    281,981.79x = 43,193,595,809.17
  5. Step 5: Solve for x
    x = 43,193,595,809.17/281,981.79
  6. Step 6: Final answer
    x = 153,178.67

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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.