Home / 215,587.50-323,136.02-131,161.56

Finding the Fourth Proportional to 215,587.50, 323,136.02 and 131,161.56

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Solution

The fourth proportional to 215,587.50, 323,136.02 and 131,161.56 is: 196,593.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,587.50 : 323,136.02 = 131,161.56 : x
  2. Step 2: Convert to fraction form
    215,587.50/323,136.02 = 131,161.56/x
  3. Step 3: Cross multiply
    215,587.50x = 323,136.02 × 131,161.56
  4. Step 4: Simplify right side
    215,587.50x = 42,383,024,475.39
  5. Step 5: Solve for x
    x = 42,383,024,475.39/215,587.50
  6. Step 6: Final answer
    x = 196,593.14

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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.