Home / 100,583.27-138,805.85-55,262.18

Finding the Fourth Proportional to 100,583.27, 138,805.85 and 55,262.18

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Solution

The fourth proportional to 100,583.27, 138,805.85 and 55,262.18 is: 76,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,583.27 : 138,805.85 = 55,262.18 : x
  2. Step 2: Convert to fraction form
    100,583.27/138,805.85 = 55,262.18/x
  3. Step 3: Cross multiply
    100,583.27x = 138,805.85 × 55,262.18
  4. Step 4: Simplify right side
    100,583.27x = 7,670,713,938.46
  5. Step 5: Solve for x
    x = 7,670,713,938.46/100,583.27
  6. Step 6: Final answer
    x = 76,262.33

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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.