Home / 143,343.30-197,784.95-82,891.92

Finding the Fourth Proportional to 143,343.30, 197,784.95 and 82,891.92

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Solution

The fourth proportional to 143,343.30, 197,784.95 and 82,891.92 is: 114,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,343.30 : 197,784.95 = 82,891.92 : x
  2. Step 2: Convert to fraction form
    143,343.30/197,784.95 = 82,891.92/x
  3. Step 3: Cross multiply
    143,343.30x = 197,784.95 × 82,891.92
  4. Step 4: Simplify right side
    143,343.30x = 16,394,773,838.14
  5. Step 5: Solve for x
    x = 16,394,773,838.14/143,343.30
  6. Step 6: Final answer
    x = 114,374.19

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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.