Home / 100,411.31-150,617.00-38,081.81

Finding the Fourth Proportional to 100,411.31, 150,617.00 and 38,081.81

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Solution

The fourth proportional to 100,411.31, 150,617.00 and 38,081.81 is: 57,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,411.31 : 150,617.00 = 38,081.81 : x
  2. Step 2: Convert to fraction form
    100,411.31/150,617.00 = 38,081.81/x
  3. Step 3: Cross multiply
    100,411.31x = 150,617.00 × 38,081.81
  4. Step 4: Simplify right side
    100,411.31x = 5,735,768,448.52
  5. Step 5: Solve for x
    x = 5,735,768,448.52/100,411.31
  6. Step 6: Final answer
    x = 57,122.73

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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.