Home / 135,865.72-203,798.38-89,107.64

Finding the Fourth Proportional to 135,865.72, 203,798.38 and 89,107.64

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Solution

The fourth proportional to 135,865.72, 203,798.38 and 89,107.64 is: 133,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,865.72 : 203,798.38 = 89,107.64 : x
  2. Step 2: Convert to fraction form
    135,865.72/203,798.38 = 89,107.64/x
  3. Step 3: Cross multiply
    135,865.72x = 203,798.38 × 89,107.64
  4. Step 4: Simplify right side
    135,865.72x = 18,159,992,677.62
  5. Step 5: Solve for x
    x = 18,159,992,677.62/135,865.72
  6. Step 6: Final answer
    x = 133,661.33

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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.