Home / 198,904.38-274,485.75-118,330.62

Finding the Fourth Proportional to 198,904.38, 274,485.75 and 118,330.62

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Solution

The fourth proportional to 198,904.38, 274,485.75 and 118,330.62 is: 163,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,904.38 : 274,485.75 = 118,330.62 : x
  2. Step 2: Convert to fraction form
    198,904.38/274,485.75 = 118,330.62/x
  3. Step 3: Cross multiply
    198,904.38x = 274,485.75 × 118,330.62
  4. Step 4: Simplify right side
    198,904.38x = 32,480,068,978.67
  5. Step 5: Solve for x
    x = 32,480,068,978.67/198,904.38
  6. Step 6: Final answer
    x = 163,294.89

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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.