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Finding the Fourth Proportional to 80,606.23, 120,893.59 and 76,605.49

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Solution

The fourth proportional to 80,606.23, 120,893.59 and 76,605.49 is: 114,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,606.23 : 120,893.59 = 76,605.49 : x
  2. Step 2: Convert to fraction form
    80,606.23/120,893.59 = 76,605.49/x
  3. Step 3: Cross multiply
    80,606.23x = 120,893.59 × 76,605.49
  4. Step 4: Simplify right side
    80,606.23x = 9,261,112,699.81
  5. Step 5: Solve for x
    x = 9,261,112,699.81/80,606.23
  6. Step 6: Final answer
    x = 114,893.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.