Home / 198,871.40-274,536.37-127,292.92

Finding the Fourth Proportional to 198,871.40, 274,536.37 and 127,292.92

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Solution

The fourth proportional to 198,871.40, 274,536.37 and 127,292.92 is: 175,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,871.40 : 274,536.37 = 127,292.92 : x
  2. Step 2: Convert to fraction form
    198,871.40/274,536.37 = 127,292.92/x
  3. Step 3: Cross multiply
    198,871.40x = 274,536.37 × 127,292.92
  4. Step 4: Simplify right side
    198,871.40x = 34,946,535,656.28
  5. Step 5: Solve for x
    x = 34,946,535,656.28/198,871.40
  6. Step 6: Final answer
    x = 175,724.29

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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.