Home / 215,972.78-297,903.67-131,089.84

Finding the Fourth Proportional to 215,972.78, 297,903.67 and 131,089.84

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Solution

The fourth proportional to 215,972.78, 297,903.67 and 131,089.84 is: 180,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,972.78 : 297,903.67 = 131,089.84 : x
  2. Step 2: Convert to fraction form
    215,972.78/297,903.67 = 131,089.84/x
  3. Step 3: Cross multiply
    215,972.78x = 297,903.67 × 131,089.84
  4. Step 4: Simplify right side
    215,972.78x = 39,052,145,180.47
  5. Step 5: Solve for x
    x = 39,052,145,180.47/215,972.78
  6. Step 6: Final answer
    x = 180,819.76

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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.