Home / 120,318.72-180,519.09-36,080.94

Finding the Fourth Proportional to 120,318.72, 180,519.09 and 36,080.94

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Solution

The fourth proportional to 120,318.72, 180,519.09 and 36,080.94 is: 54,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,318.72 : 180,519.09 = 36,080.94 : x
  2. Step 2: Convert to fraction form
    120,318.72/180,519.09 = 36,080.94/x
  3. Step 3: Cross multiply
    120,318.72x = 180,519.09 × 36,080.94
  4. Step 4: Simplify right side
    120,318.72x = 6,513,298,455.14
  5. Step 5: Solve for x
    x = 6,513,298,455.14/120,318.72
  6. Step 6: Final answer
    x = 54,133.71

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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.