Home / 103,940.73-143,438.27-56,194.43

Finding the Fourth Proportional to 103,940.73, 143,438.27 and 56,194.43

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Solution

The fourth proportional to 103,940.73, 143,438.27 and 56,194.43 is: 77,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,940.73 : 143,438.27 = 56,194.43 : x
  2. Step 2: Convert to fraction form
    103,940.73/143,438.27 = 56,194.43/x
  3. Step 3: Cross multiply
    103,940.73x = 143,438.27 × 56,194.43
  4. Step 4: Simplify right side
    103,940.73x = 8,060,430,824.67
  5. Step 5: Solve for x
    x = 8,060,430,824.67/103,940.73
  6. Step 6: Final answer
    x = 77,548.34

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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.