Home / 149,200.56-205,899.39-81,219.48

Finding the Fourth Proportional to 149,200.56, 205,899.39 and 81,219.48

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Solution

The fourth proportional to 149,200.56, 205,899.39 and 81,219.48 is: 112,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,200.56 : 205,899.39 = 81,219.48 : x
  2. Step 2: Convert to fraction form
    149,200.56/205,899.39 = 81,219.48/x
  3. Step 3: Cross multiply
    149,200.56x = 205,899.39 × 81,219.48
  4. Step 4: Simplify right side
    149,200.56x = 16,723,041,388.12
  5. Step 5: Solve for x
    x = 16,723,041,388.12/149,200.56
  6. Step 6: Final answer
    x = 112,084.31

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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.