Home / 117,939.48-162,730.14-98,896.28

Finding the Fourth Proportional to 117,939.48, 162,730.14 and 98,896.28

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Solution

The fourth proportional to 117,939.48, 162,730.14 and 98,896.28 is: 136,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,939.48 : 162,730.14 = 98,896.28 : x
  2. Step 2: Convert to fraction form
    117,939.48/162,730.14 = 98,896.28/x
  3. Step 3: Cross multiply
    117,939.48x = 162,730.14 × 98,896.28
  4. Step 4: Simplify right side
    117,939.48x = 16,093,405,489.88
  5. Step 5: Solve for x
    x = 16,093,405,489.88/117,939.48
  6. Step 6: Final answer
    x = 136,454.78

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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.