Home / 281,037.76-421,722.96-103,669.44

Finding the Fourth Proportional to 281,037.76, 421,722.96 and 103,669.44

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Solution

The fourth proportional to 281,037.76, 421,722.96 and 103,669.44 is: 155,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037.76 : 421,722.96 = 103,669.44 : x
  2. Step 2: Convert to fraction form
    281,037.76/421,722.96 = 103,669.44/x
  3. Step 3: Cross multiply
    281,037.76x = 421,722.96 × 103,669.44
  4. Step 4: Simplify right side
    281,037.76x = 43,719,783,098.34
  5. Step 5: Solve for x
    x = 43,719,783,098.34/281,037.76
  6. Step 6: Final answer
    x = 155,565.51

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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.