Home / 100,419.13-150,628.70-41,238.91

Finding the Fourth Proportional to 100,419.13, 150,628.70 and 41,238.91

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Solution

The fourth proportional to 100,419.13, 150,628.70 and 41,238.91 is: 61,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,419.13 : 150,628.70 = 41,238.91 : x
  2. Step 2: Convert to fraction form
    100,419.13/150,628.70 = 41,238.91/x
  3. Step 3: Cross multiply
    100,419.13x = 150,628.70 × 41,238.91
  4. Step 4: Simplify right side
    100,419.13x = 6,211,763,402.72
  5. Step 5: Solve for x
    x = 6,211,763,402.72/100,419.13
  6. Step 6: Final answer
    x = 61,858.37

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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.