Home / 208,371.15-287,556.89-122,354.82

Finding the Fourth Proportional to 208,371.15, 287,556.89 and 122,354.82

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Solution

The fourth proportional to 208,371.15, 287,556.89 and 122,354.82 is: 168,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,371.15 : 287,556.89 = 122,354.82 : x
  2. Step 2: Convert to fraction form
    208,371.15/287,556.89 = 122,354.82/x
  3. Step 3: Cross multiply
    208,371.15x = 287,556.89 × 122,354.82
  4. Step 4: Simplify right side
    208,371.15x = 35,183,970,903.94
  5. Step 5: Solve for x
    x = 35,183,970,903.94/208,371.15
  6. Step 6: Final answer
    x = 168,852.41

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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.