Home / 100,986.93-139,370.00-55,673.01

Finding the Fourth Proportional to 100,986.93, 139,370.00 and 55,673.01

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Solution

The fourth proportional to 100,986.93, 139,370.00 and 55,673.01 is: 76,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,986.93 : 139,370.00 = 55,673.01 : x
  2. Step 2: Convert to fraction form
    100,986.93/139,370.00 = 55,673.01/x
  3. Step 3: Cross multiply
    100,986.93x = 139,370.00 × 55,673.01
  4. Step 4: Simplify right side
    100,986.93x = 7,759,147,125.33
  5. Step 5: Solve for x
    x = 7,759,147,125.33/100,986.93
  6. Step 6: Final answer
    x = 76,833.18

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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.