Home / 180,891.25-249,629.93-100,331.11

Finding the Fourth Proportional to 180,891.25, 249,629.93 and 100,331.11

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Solution

The fourth proportional to 180,891.25, 249,629.93 and 100,331.11 is: 138,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,891.25 : 249,629.93 = 100,331.11 : x
  2. Step 2: Convert to fraction form
    180,891.25/249,629.93 = 100,331.11/x
  3. Step 3: Cross multiply
    180,891.25x = 249,629.93 × 100,331.11
  4. Step 4: Simplify right side
    180,891.25x = 25,045,647,966.12
  5. Step 5: Solve for x
    x = 25,045,647,966.12/180,891.25
  6. Step 6: Final answer
    x = 138,456.93

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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.