Home / 198,474.69-274,008.59-130,688.63

Finding the Fourth Proportional to 198,474.69, 274,008.59 and 130,688.63

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Solution

The fourth proportional to 198,474.69, 274,008.59 and 130,688.63 is: 180,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,474.69 : 274,008.59 = 130,688.63 : x
  2. Step 2: Convert to fraction form
    198,474.69/274,008.59 = 130,688.63/x
  3. Step 3: Cross multiply
    198,474.69x = 274,008.59 × 130,688.63
  4. Step 4: Simplify right side
    198,474.69x = 35,809,807,235.33
  5. Step 5: Solve for x
    x = 35,809,807,235.33/198,474.69
  6. Step 6: Final answer
    x = 180,425.06

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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.