Home / 120,438.77-180,651.33-36,197.24

Finding the Fourth Proportional to 120,438.77, 180,651.33 and 36,197.24

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Solution

The fourth proportional to 120,438.77, 180,651.33 and 36,197.24 is: 54,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,438.77 : 180,651.33 = 36,197.24 : x
  2. Step 2: Convert to fraction form
    120,438.77/180,651.33 = 36,197.24/x
  3. Step 3: Cross multiply
    120,438.77x = 180,651.33 × 36,197.24
  4. Step 4: Simplify right side
    120,438.77x = 6,539,079,762.57
  5. Step 5: Solve for x
    x = 6,539,079,762.57/120,438.77
  6. Step 6: Final answer
    x = 54,293.81

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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.