Home / 186,741.20-280,147.80-80,123.60

Finding the Fourth Proportional to 186,741.20, 280,147.80 and 80,123.60

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Solution

The fourth proportional to 186,741.20, 280,147.80 and 80,123.60 is: 120,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,741.20 : 280,147.80 = 80,123.60 : x
  2. Step 2: Convert to fraction form
    186,741.20/280,147.80 = 80,123.60/x
  3. Step 3: Cross multiply
    186,741.20x = 280,147.80 × 80,123.60
  4. Step 4: Simplify right side
    186,741.20x = 22,446,450,268.08
  5. Step 5: Solve for x
    x = 22,446,450,268.08/186,741.20
  6. Step 6: Final answer
    x = 120,200.85

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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.