Home / 215,636.64-323,439.60-80,675.04

Finding the Fourth Proportional to 215,636.64, 323,439.60 and 80,675.04

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Solution

The fourth proportional to 215,636.64, 323,439.60 and 80,675.04 is: 121,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,636.64 : 323,439.60 = 80,675.04 : x
  2. Step 2: Convert to fraction form
    215,636.64/323,439.60 = 80,675.04/x
  3. Step 3: Cross multiply
    215,636.64x = 323,439.60 × 80,675.04
  4. Step 4: Simplify right side
    215,636.64x = 26,093,502,667.58
  5. Step 5: Solve for x
    x = 26,093,502,667.58/215,636.64
  6. Step 6: Final answer
    x = 121,006.81

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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.