Home / 143,883.64-198,469.73-92,876.72

Finding the Fourth Proportional to 143,883.64, 198,469.73 and 92,876.72

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Solution

The fourth proportional to 143,883.64, 198,469.73 and 92,876.72 is: 128,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,883.64 : 198,469.73 = 92,876.72 : x
  2. Step 2: Convert to fraction form
    143,883.64/198,469.73 = 92,876.72/x
  3. Step 3: Cross multiply
    143,883.64x = 198,469.73 × 92,876.72
  4. Step 4: Simplify right side
    143,883.64x = 18,433,217,077.30
  5. Step 5: Solve for x
    x = 18,433,217,077.30/143,883.64
  6. Step 6: Final answer
    x = 128,111.98

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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.