Home / 80,858.05-121,287.08-73,600.45

Finding the Fourth Proportional to 80,858.05, 121,287.08 and 73,600.45

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Solution

The fourth proportional to 80,858.05, 121,287.08 and 73,600.45 is: 110,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,858.05 : 121,287.08 = 73,600.45 : x
  2. Step 2: Convert to fraction form
    80,858.05/121,287.08 = 73,600.45/x
  3. Step 3: Cross multiply
    80,858.05x = 121,287.08 × 73,600.45
  4. Step 4: Simplify right side
    80,858.05x = 8,926,783,299.18
  5. Step 5: Solve for x
    x = 8,926,783,299.18/80,858.05
  6. Step 6: Final answer
    x = 110,400.68

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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.