Home / 120,868.39-181,117.90-50,709.43

Finding the Fourth Proportional to 120,868.39, 181,117.90 and 50,709.43

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Solution

The fourth proportional to 120,868.39, 181,117.90 and 50,709.43 is: 75,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,868.39 : 181,117.90 = 50,709.43 : x
  2. Step 2: Convert to fraction form
    120,868.39/181,117.90 = 50,709.43/x
  3. Step 3: Cross multiply
    120,868.39x = 181,117.90 × 50,709.43
  4. Step 4: Simplify right side
    120,868.39x = 9,184,385,471.80
  5. Step 5: Solve for x
    x = 9,184,385,471.80/120,868.39
  6. Step 6: Final answer
    x = 75,986.66

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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.