Home / 125,213.57-187,508.78-87,597.56

Finding the Fourth Proportional to 125,213.57, 187,508.78 and 87,597.56

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Solution

The fourth proportional to 125,213.57, 187,508.78 and 87,597.56 is: 131,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,213.57 : 187,508.78 = 87,597.56 : x
  2. Step 2: Convert to fraction form
    125,213.57/187,508.78 = 87,597.56/x
  3. Step 3: Cross multiply
    125,213.57x = 187,508.78 × 87,597.56
  4. Step 4: Simplify right side
    125,213.57x = 16,425,310,231.05
  5. Step 5: Solve for x
    x = 16,425,310,231.05/125,213.57
  6. Step 6: Final answer
    x = 131,178.36

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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.