Home / 120,372.14-180,588.25-36,133.86

Finding the Fourth Proportional to 120,372.14, 180,588.25 and 36,133.86

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Solution

The fourth proportional to 120,372.14, 180,588.25 and 36,133.86 is: 54,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372.14 : 180,588.25 = 36,133.86 : x
  2. Step 2: Convert to fraction form
    120,372.14/180,588.25 = 36,133.86/x
  3. Step 3: Cross multiply
    120,372.14x = 180,588.25 × 36,133.86
  4. Step 4: Simplify right side
    120,372.14x = 6,525,351,265.52
  5. Step 5: Solve for x
    x = 6,525,351,265.52/120,372.14
  6. Step 6: Final answer
    x = 54,209.81

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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.