Home / 180,815.88-249,540.66-100,268.64

Finding the Fourth Proportional to 180,815.88, 249,540.66 and 100,268.64

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Solution

The fourth proportional to 180,815.88, 249,540.66 and 100,268.64 is: 138,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,815.88 : 249,540.66 = 100,268.64 : x
  2. Step 2: Convert to fraction form
    180,815.88/249,540.66 = 100,268.64/x
  3. Step 3: Cross multiply
    180,815.88x = 249,540.66 × 100,268.64
  4. Step 4: Simplify right side
    180,815.88x = 25,021,102,602.90
  5. Step 5: Solve for x
    x = 25,021,102,602.90/180,815.88
  6. Step 6: Final answer
    x = 138,378.90

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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.