Home / 120,245.44-180,390.84-37,120

Finding the Fourth Proportional to 120,245.44, 180,390.84 and 37,120

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Solution

The fourth proportional to 120,245.44, 180,390.84 and 37,120 is: 55,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,245.44 : 180,390.84 = 37,120 : x
  2. Step 2: Convert to fraction form
    120,245.44/180,390.84 = 37,120/x
  3. Step 3: Cross multiply
    120,245.44x = 180,390.84 × 37,120
  4. Step 4: Simplify right side
    120,245.44x = 6,696,107,980.80
  5. Step 5: Solve for x
    x = 6,696,107,980.80/120,245.44
  6. Step 6: Final answer
    x = 55,687.00

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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.