Home / 143,956.74-198,620.43-92,971.62

Finding the Fourth Proportional to 143,956.74, 198,620.43 and 92,971.62

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Solution

The fourth proportional to 143,956.74, 198,620.43 and 92,971.62 is: 128,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,956.74 : 198,620.43 = 92,971.62 : x
  2. Step 2: Convert to fraction form
    143,956.74/198,620.43 = 92,971.62/x
  3. Step 3: Cross multiply
    143,956.74x = 198,620.43 × 92,971.62
  4. Step 4: Simplify right side
    143,956.74x = 18,466,063,142.20
  5. Step 5: Solve for x
    x = 18,466,063,142.20/143,956.74
  6. Step 6: Final answer
    x = 128,275.09

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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.