Home / 100,836.74-139,152.16-55,514.27

Finding the Fourth Proportional to 100,836.74, 139,152.16 and 55,514.27

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Solution

The fourth proportional to 100,836.74, 139,152.16 and 55,514.27 is: 76,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,836.74 : 139,152.16 = 55,514.27 : x
  2. Step 2: Convert to fraction form
    100,836.74/139,152.16 = 55,514.27/x
  3. Step 3: Cross multiply
    100,836.74x = 139,152.16 × 55,514.27
  4. Step 4: Simplify right side
    100,836.74x = 7,724,930,998.60
  5. Step 5: Solve for x
    x = 7,724,930,998.60/100,836.74
  6. Step 6: Final answer
    x = 76,608.30

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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.