Home / 120,825.09-181,288.67-64,650.38

Finding the Fourth Proportional to 120,825.09, 181,288.67 and 64,650.38

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Solution

The fourth proportional to 120,825.09, 181,288.67 and 64,650.38 is: 97,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,825.09 : 181,288.67 = 64,650.38 : x
  2. Step 2: Convert to fraction form
    120,825.09/181,288.67 = 64,650.38/x
  3. Step 3: Cross multiply
    120,825.09x = 181,288.67 × 64,650.38
  4. Step 4: Simplify right side
    120,825.09x = 11,720,380,175.50
  5. Step 5: Solve for x
    x = 11,720,380,175.50/120,825.09
  6. Step 6: Final answer
    x = 97,002.87

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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.