Home / 198,724.59-274,159.04-112,665.42

Finding the Fourth Proportional to 198,724.59, 274,159.04 and 112,665.42

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Solution

The fourth proportional to 198,724.59, 274,159.04 and 112,665.42 is: 155,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,724.59 : 274,159.04 = 112,665.42 : x
  2. Step 2: Convert to fraction form
    198,724.59/274,159.04 = 112,665.42/x
  3. Step 3: Cross multiply
    198,724.59x = 274,159.04 × 112,665.42
  4. Step 4: Simplify right side
    198,724.59x = 30,888,242,825.07
  5. Step 5: Solve for x
    x = 30,888,242,825.07/198,724.59
  6. Step 6: Final answer
    x = 155,432.41

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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.