Home / 149,533.64-206,356.60-81,550.72

Finding the Fourth Proportional to 149,533.64, 206,356.60 and 81,550.72

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Solution

The fourth proportional to 149,533.64, 206,356.60 and 81,550.72 is: 112,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,533.64 : 206,356.60 = 81,550.72 : x
  2. Step 2: Convert to fraction form
    149,533.64/206,356.60 = 81,550.72/x
  3. Step 3: Cross multiply
    149,533.64x = 206,356.60 × 81,550.72
  4. Step 4: Simplify right side
    149,533.64x = 16,828,529,306.75
  5. Step 5: Solve for x
    x = 16,828,529,306.75/149,533.64
  6. Step 6: Final answer
    x = 112,540.09

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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.