Home / 148,655.42-205,144.61-80,672.39

Finding the Fourth Proportional to 148,655.42, 205,144.61 and 80,672.39

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Solution

The fourth proportional to 148,655.42, 205,144.61 and 80,672.39 is: 111,327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,655.42 : 205,144.61 = 80,672.39 : x
  2. Step 2: Convert to fraction form
    148,655.42/205,144.61 = 80,672.39/x
  3. Step 3: Cross multiply
    148,655.42x = 205,144.61 × 80,672.39
  4. Step 4: Simplify right side
    148,655.42x = 16,549,505,324.53
  5. Step 5: Solve for x
    x = 16,549,505,324.53/148,655.42
  6. Step 6: Final answer
    x = 111,327.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.