Home / 138,949.26-191,749.46-75,287.22

Finding the Fourth Proportional to 138,949.26, 191,749.46 and 75,287.22

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Solution

The fourth proportional to 138,949.26, 191,749.46 and 75,287.22 is: 103,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,949.26 : 191,749.46 = 75,287.22 : x
  2. Step 2: Convert to fraction form
    138,949.26/191,749.46 = 75,287.22/x
  3. Step 3: Cross multiply
    138,949.26x = 191,749.46 × 75,287.22
  4. Step 4: Simplify right side
    138,949.26x = 14,436,283,779.90
  5. Step 5: Solve for x
    x = 14,436,283,779.90/138,949.26
  6. Step 6: Final answer
    x = 103,896.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.