Home / 180,986.94-249,791.97-100,440.35

Finding the Fourth Proportional to 180,986.94, 249,791.97 and 100,440.35

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Solution

The fourth proportional to 180,986.94, 249,791.97 and 100,440.35 is: 138,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,986.94 : 249,791.97 = 100,440.35 : x
  2. Step 2: Convert to fraction form
    180,986.94/249,791.97 = 100,440.35/x
  3. Step 3: Cross multiply
    180,986.94x = 249,791.97 × 100,440.35
  4. Step 4: Simplify right side
    180,986.94x = 25,089,191,645.03
  5. Step 5: Solve for x
    x = 25,089,191,645.03/180,986.94
  6. Step 6: Final answer
    x = 138,624.32

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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.