Home / 149,142.66-205,816.90-82,074.66

Finding the Fourth Proportional to 149,142.66, 205,816.90 and 82,074.66

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Solution

The fourth proportional to 149,142.66, 205,816.90 and 82,074.66 is: 113,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,142.66 : 205,816.90 = 82,074.66 : x
  2. Step 2: Convert to fraction form
    149,142.66/205,816.90 = 82,074.66/x
  3. Step 3: Cross multiply
    149,142.66x = 205,816.90 × 82,074.66
  4. Step 4: Simplify right side
    149,142.66x = 16,892,351,884.57
  5. Step 5: Solve for x
    x = 16,892,351,884.57/149,142.66
  6. Step 6: Final answer
    x = 113,263.05

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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.