Home / 198,580.72-274,063-113,725.68

Finding the Fourth Proportional to 198,580.72, 274,063 and 113,725.68

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Solution

The fourth proportional to 198,580.72, 274,063 and 113,725.68 is: 156,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,580.72 : 274,063 = 113,725.68 : x
  2. Step 2: Convert to fraction form
    198,580.72/274,063 = 113,725.68/x
  3. Step 3: Cross multiply
    198,580.72x = 274,063 × 113,725.68
  4. Step 4: Simplify right side
    198,580.72x = 31,168,001,037.84
  5. Step 5: Solve for x
    x = 31,168,001,037.84/198,580.72
  6. Step 6: Final answer
    x = 156,953.81

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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.