Home / 198,706.86-274,209.37-112,673.72

Finding the Fourth Proportional to 198,706.86, 274,209.37 and 112,673.72

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Solution

The fourth proportional to 198,706.86, 274,209.37 and 112,673.72 is: 155,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,706.86 : 274,209.37 = 112,673.72 : x
  2. Step 2: Convert to fraction form
    198,706.86/274,209.37 = 112,673.72/x
  3. Step 3: Cross multiply
    198,706.86x = 274,209.37 × 112,673.72
  4. Step 4: Simplify right side
    198,706.86x = 30,896,190,180.60
  5. Step 5: Solve for x
    x = 30,896,190,180.60/198,706.86
  6. Step 6: Final answer
    x = 155,486.28

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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.