Home / 80,614.24-120,905.60-76,613.50

Finding the Fourth Proportional to 80,614.24, 120,905.60 and 76,613.50

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Solution

The fourth proportional to 80,614.24, 120,905.60 and 76,613.50 is: 114,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,614.24 : 120,905.60 = 76,613.50 : x
  2. Step 2: Convert to fraction form
    80,614.24/120,905.60 = 76,613.50/x
  3. Step 3: Cross multiply
    80,614.24x = 120,905.60 × 76,613.50
  4. Step 4: Simplify right side
    80,614.24x = 9,263,001,185.60
  5. Step 5: Solve for x
    x = 9,263,001,185.60/80,614.24
  6. Step 6: Final answer
    x = 114,905.27

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1.5x scale

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.