Home / 107,931.28-161,896.38-29,039.08

Finding the Fourth Proportional to 107,931.28, 161,896.38 and 29,039.08

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Solution

The fourth proportional to 107,931.28, 161,896.38 and 29,039.08 is: 43,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,931.28 : 161,896.38 = 29,039.08 : x
  2. Step 2: Convert to fraction form
    107,931.28/161,896.38 = 29,039.08/x
  3. Step 3: Cross multiply
    107,931.28x = 161,896.38 × 29,039.08
  4. Step 4: Simplify right side
    107,931.28x = 4,701,321,930.53
  5. Step 5: Solve for x
    x = 4,701,321,930.53/107,931.28
  6. Step 6: Final answer
    x = 43,558.47

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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.