Home / 103,956.73-155,183.09-91,345.44

Finding the Fourth Proportional to 103,956.73, 155,183.09 and 91,345.44

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Solution

The fourth proportional to 103,956.73, 155,183.09 and 91,345.44 is: 136,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,956.73 : 155,183.09 = 91,345.44 : x
  2. Step 2: Convert to fraction form
    103,956.73/155,183.09 = 91,345.44/x
  3. Step 3: Cross multiply
    103,956.73x = 155,183.09 × 91,345.44
  4. Step 4: Simplify right side
    103,956.73x = 14,175,267,636.61
  5. Step 5: Solve for x
    x = 14,175,267,636.61/103,956.73
  6. Step 6: Final answer
    x = 136,357.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.