Home / 198,724.20-274,309.80-118,151.34

Finding the Fourth Proportional to 198,724.20, 274,309.80 and 118,151.34

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Solution

The fourth proportional to 198,724.20, 274,309.80 and 118,151.34 is: 163,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,724.20 : 274,309.80 = 118,151.34 : x
  2. Step 2: Convert to fraction form
    198,724.20/274,309.80 = 118,151.34/x
  3. Step 3: Cross multiply
    198,724.20x = 274,309.80 × 118,151.34
  4. Step 4: Simplify right side
    198,724.20x = 32,410,070,445.13
  5. Step 5: Solve for x
    x = 32,410,070,445.13/198,724.20
  6. Step 6: Final answer
    x = 163,090.71

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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.