Home / 198,498.64-273,951.66-113,643.04

Finding the Fourth Proportional to 198,498.64, 273,951.66 and 113,643.04

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Solution

The fourth proportional to 198,498.64, 273,951.66 and 113,643.04 is: 156,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,498.64 : 273,951.66 = 113,643.04 : x
  2. Step 2: Convert to fraction form
    198,498.64/273,951.66 = 113,643.04/x
  3. Step 3: Cross multiply
    198,498.64x = 273,951.66 × 113,643.04
  4. Step 4: Simplify right side
    198,498.64x = 31,132,699,455.45
  5. Step 5: Solve for x
    x = 31,132,699,455.45/198,498.64
  6. Step 6: Final answer
    x = 156,840.87

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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.