Home / 103,965.81-155,921.04-29,081.31

Finding the Fourth Proportional to 103,965.81, 155,921.04 and 29,081.31

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Solution

The fourth proportional to 103,965.81, 155,921.04 and 29,081.31 is: 43,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,965.81 : 155,921.04 = 29,081.31 : x
  2. Step 2: Convert to fraction form
    103,965.81/155,921.04 = 29,081.31/x
  3. Step 3: Cross multiply
    103,965.81x = 155,921.04 × 29,081.31
  4. Step 4: Simplify right side
    103,965.81x = 4,534,388,099.76
  5. Step 5: Solve for x
    x = 4,534,388,099.76/103,965.81
  6. Step 6: Final answer
    x = 43,614.22

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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.