Home / 180,996.04-249,766.10-100,422.68

Finding the Fourth Proportional to 180,996.04, 249,766.10 and 100,422.68

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Solution

The fourth proportional to 180,996.04, 249,766.10 and 100,422.68 is: 138,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,996.04 : 249,766.10 = 100,422.68 : x
  2. Step 2: Convert to fraction form
    180,996.04/249,766.10 = 100,422.68/x
  3. Step 3: Cross multiply
    180,996.04x = 249,766.10 × 100,422.68
  4. Step 4: Simplify right side
    180,996.04x = 25,082,181,135.15
  5. Step 5: Solve for x
    x = 25,082,181,135.15/180,996.04
  6. Step 6: Final answer
    x = 138,578.62

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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.