Home / 180,912.33-249,674.31-100,365.75

Finding the Fourth Proportional to 180,912.33, 249,674.31 and 100,365.75

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Solution

The fourth proportional to 180,912.33, 249,674.31 and 100,365.75 is: 138,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,912.33 : 249,674.31 = 100,365.75 : x
  2. Step 2: Convert to fraction form
    180,912.33/249,674.31 = 100,365.75/x
  3. Step 3: Cross multiply
    180,912.33x = 249,674.31 × 100,365.75
  4. Step 4: Simplify right side
    180,912.33x = 25,058,749,378.88
  5. Step 5: Solve for x
    x = 25,058,749,378.88/180,912.33
  6. Step 6: Final answer
    x = 138,513.22

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1.5x scale

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.