Home / 100,927.22-139,280.82-55,605.08

Finding the Fourth Proportional to 100,927.22, 139,280.82 and 55,605.08

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Solution

The fourth proportional to 100,927.22, 139,280.82 and 55,605.08 is: 76,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927.22 : 139,280.82 = 55,605.08 : x
  2. Step 2: Convert to fraction form
    100,927.22/139,280.82 = 55,605.08/x
  3. Step 3: Cross multiply
    100,927.22x = 139,280.82 × 55,605.08
  4. Step 4: Simplify right side
    100,927.22x = 7,744,721,278.25
  5. Step 5: Solve for x
    x = 7,744,721,278.25/100,927.22
  6. Step 6: Final answer
    x = 76,735.71

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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.