Home / 103,619.67-155,226.09-53,732.37

Finding the Fourth Proportional to 103,619.67, 155,226.09 and 53,732.37

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Solution

The fourth proportional to 103,619.67, 155,226.09 and 53,732.37 is: 80,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.67 : 155,226.09 = 53,732.37 : x
  2. Step 2: Convert to fraction form
    103,619.67/155,226.09 = 53,732.37/x
  3. Step 3: Cross multiply
    103,619.67x = 155,226.09 × 53,732.37
  4. Step 4: Simplify right side
    103,619.67x = 8,340,665,701.53
  5. Step 5: Solve for x
    x = 8,340,665,701.53/103,619.67
  6. Step 6: Final answer
    x = 80,493.07

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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.