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Finding the Fourth Proportional to 131,596.88, 181,596.78 and 74,234.54

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Solution

The fourth proportional to 131,596.88, 181,596.78 and 74,234.54 is: 102,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,596.88 : 181,596.78 = 74,234.54 : x
  2. Step 2: Convert to fraction form
    131,596.88/181,596.78 = 74,234.54/x
  3. Step 3: Cross multiply
    131,596.88x = 181,596.78 × 74,234.54
  4. Step 4: Simplify right side
    131,596.88x = 13,480,753,428.78
  5. Step 5: Solve for x
    x = 13,480,753,428.78/131,596.88
  6. Step 6: Final answer
    x = 102,439.76

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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.