Home / 208,848.43-287,992.98-123,949.09

Finding the Fourth Proportional to 208,848.43, 287,992.98 and 123,949.09

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Solution

The fourth proportional to 208,848.43, 287,992.98 and 123,949.09 is: 170,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,848.43 : 287,992.98 = 123,949.09 : x
  2. Step 2: Convert to fraction form
    208,848.43/287,992.98 = 123,949.09/x
  3. Step 3: Cross multiply
    208,848.43x = 287,992.98 × 123,949.09
  4. Step 4: Simplify right side
    208,848.43x = 35,696,467,797.39
  5. Step 5: Solve for x
    x = 35,696,467,797.39/208,848.43
  6. Step 6: Final answer
    x = 170,920.45

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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.