Home / 215,421.15-323,179.70-65,673.09

Finding the Fourth Proportional to 215,421.15, 323,179.70 and 65,673.09

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Solution

The fourth proportional to 215,421.15, 323,179.70 and 65,673.09 is: 98,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,421.15 : 323,179.70 = 65,673.09 : x
  2. Step 2: Convert to fraction form
    215,421.15/323,179.70 = 65,673.09/x
  3. Step 3: Cross multiply
    215,421.15x = 323,179.70 × 65,673.09
  4. Step 4: Simplify right side
    215,421.15x = 21,224,209,195.91
  5. Step 5: Solve for x
    x = 21,224,209,195.91/215,421.15
  6. Step 6: Final answer
    x = 98,524.26

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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.