Home / 215,899.92-297,945.72-120,396.36

Finding the Fourth Proportional to 215,899.92, 297,945.72 and 120,396.36

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Solution

The fourth proportional to 215,899.92, 297,945.72 and 120,396.36 is: 166,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,899.92 : 297,945.72 = 120,396.36 : x
  2. Step 2: Convert to fraction form
    215,899.92/297,945.72 = 120,396.36/x
  3. Step 3: Cross multiply
    215,899.92x = 297,945.72 × 120,396.36
  4. Step 4: Simplify right side
    215,899.92x = 35,871,580,165.58
  5. Step 5: Solve for x
    x = 35,871,580,165.58/215,899.92
  6. Step 6: Final answer
    x = 166,149.11

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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.