Home / 198,539.08-274,047.78-127,111.48

Finding the Fourth Proportional to 198,539.08, 274,047.78 and 127,111.48

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Solution

The fourth proportional to 198,539.08, 274,047.78 and 127,111.48 is: 175,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,539.08 : 274,047.78 = 127,111.48 : x
  2. Step 2: Convert to fraction form
    198,539.08/274,047.78 = 127,111.48/x
  3. Step 3: Cross multiply
    198,539.08x = 274,047.78 × 127,111.48
  4. Step 4: Simplify right side
    198,539.08x = 34,834,618,906.51
  5. Step 5: Solve for x
    x = 34,834,618,906.51/198,539.08
  6. Step 6: Final answer
    x = 175,454.72

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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.