Home / 103,193.57-154,779.98-28,321.24

Finding the Fourth Proportional to 103,193.57, 154,779.98 and 28,321.24

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Solution

The fourth proportional to 103,193.57, 154,779.98 and 28,321.24 is: 42,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,193.57 : 154,779.98 = 28,321.24 : x
  2. Step 2: Convert to fraction form
    103,193.57/154,779.98 = 28,321.24/x
  3. Step 3: Cross multiply
    103,193.57x = 154,779.98 × 28,321.24
  4. Step 4: Simplify right side
    103,193.57x = 4,383,560,960.78
  5. Step 5: Solve for x
    x = 4,383,560,960.78/103,193.57
  6. Step 6: Final answer
    x = 42,479.01

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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.