Home / 215,747.64-297,741.96-120,255.12

Finding the Fourth Proportional to 215,747.64, 297,741.96 and 120,255.12

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Solution

The fourth proportional to 215,747.64, 297,741.96 and 120,255.12 is: 165,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,747.64 : 297,741.96 = 120,255.12 : x
  2. Step 2: Convert to fraction form
    215,747.64/297,741.96 = 120,255.12/x
  3. Step 3: Cross multiply
    215,747.64x = 297,741.96 × 120,255.12
  4. Step 4: Simplify right side
    215,747.64x = 35,804,995,128.84
  5. Step 5: Solve for x
    x = 35,804,995,128.84/215,747.64
  6. Step 6: Final answer
    x = 165,957.76

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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.