Home / 180,919.62-249,668.97-100,359.30

Finding the Fourth Proportional to 180,919.62, 249,668.97 and 100,359.30

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Solution

The fourth proportional to 180,919.62, 249,668.97 and 100,359.30 is: 138,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,919.62 : 249,668.97 = 100,359.30 : x
  2. Step 2: Convert to fraction form
    180,919.62/249,668.97 = 100,359.30/x
  3. Step 3: Cross multiply
    180,919.62x = 249,668.97 × 100,359.30
  4. Step 4: Simplify right side
    180,919.62x = 25,056,603,060.92
  5. Step 5: Solve for x
    x = 25,056,603,060.92/180,919.62
  6. Step 6: Final answer
    x = 138,495.78

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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.