Home / 451,485.72-676,969.38-135,849.24

Finding the Fourth Proportional to 451,485.72, 676,969.38 and 135,849.24

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Solution

The fourth proportional to 451,485.72, 676,969.38 and 135,849.24 is: 203,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,485.72 : 676,969.38 = 135,849.24 : x
  2. Step 2: Convert to fraction form
    451,485.72/676,969.38 = 135,849.24/x
  3. Step 3: Cross multiply
    451,485.72x = 676,969.38 × 135,849.24
  4. Step 4: Simplify right side
    451,485.72x = 91,965,775,776.27
  5. Step 5: Solve for x
    x = 91,965,775,776.27/451,485.72
  6. Step 6: Final answer
    x = 203,695.87

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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.