Home / 120,745.15-181,144.59-39,695.84

Finding the Fourth Proportional to 120,745.15, 181,144.59 and 39,695.84

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Solution

The fourth proportional to 120,745.15, 181,144.59 and 39,695.84 is: 59,552.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,745.15 : 181,144.59 = 39,695.84 : x
  2. Step 2: Convert to fraction form
    120,745.15/181,144.59 = 39,695.84/x
  3. Step 3: Cross multiply
    120,745.15x = 181,144.59 × 39,695.84
  4. Step 4: Simplify right side
    120,745.15x = 7,190,686,286.22
  5. Step 5: Solve for x
    x = 7,190,686,286.22/120,745.15
  6. Step 6: Final answer
    x = 59,552.59

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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.