Home / 80,605.23-120,892.10-76,604.49

Finding the Fourth Proportional to 80,605.23, 120,892.10 and 76,604.49

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Solution

The fourth proportional to 80,605.23, 120,892.10 and 76,604.49 is: 114,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605.23 : 120,892.10 = 76,604.49 : x
  2. Step 2: Convert to fraction form
    80,605.23/120,892.10 = 76,604.49/x
  3. Step 3: Cross multiply
    80,605.23x = 120,892.10 × 76,604.49
  4. Step 4: Simplify right side
    80,605.23x = 9,260,877,282.51
  5. Step 5: Solve for x
    x = 9,260,877,282.51/80,605.23
  6. Step 6: Final answer
    x = 114,891.77

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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.