Home / 103,699.23-155,548.94-28,819.39

Finding the Fourth Proportional to 103,699.23, 155,548.94 and 28,819.39

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Solution

The fourth proportional to 103,699.23, 155,548.94 and 28,819.39 is: 43,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,699.23 : 155,548.94 = 28,819.39 : x
  2. Step 2: Convert to fraction form
    103,699.23/155,548.94 = 28,819.39/x
  3. Step 3: Cross multiply
    103,699.23x = 155,548.94 × 28,819.39
  4. Step 4: Simplify right side
    103,699.23x = 4,482,824,788.20
  5. Step 5: Solve for x
    x = 4,482,824,788.20/103,699.23
  6. Step 6: Final answer
    x = 43,229.11

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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.