Home / 72,136.69-108,205.04-19,546.17

Finding the Fourth Proportional to 72,136.69, 108,205.04 and 19,546.17

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Solution

The fourth proportional to 72,136.69, 108,205.04 and 19,546.17 is: 29,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,136.69 : 108,205.04 = 19,546.17 : x
  2. Step 2: Convert to fraction form
    72,136.69/108,205.04 = 19,546.17/x
  3. Step 3: Cross multiply
    72,136.69x = 108,205.04 × 19,546.17
  4. Step 4: Simplify right side
    72,136.69x = 2,114,994,455.64
  5. Step 5: Solve for x
    x = 2,114,994,455.64/72,136.69
  6. Step 6: Final answer
    x = 29,319.26

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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.