Home / 131,998.91-182,157.39-74,649.50

Finding the Fourth Proportional to 131,998.91, 182,157.39 and 74,649.50

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Solution

The fourth proportional to 131,998.91, 182,157.39 and 74,649.50 is: 103,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,998.91 : 182,157.39 = 74,649.50 : x
  2. Step 2: Convert to fraction form
    131,998.91/182,157.39 = 74,649.50/x
  3. Step 3: Cross multiply
    131,998.91x = 182,157.39 × 74,649.50
  4. Step 4: Simplify right side
    131,998.91x = 13,597,957,174.02
  5. Step 5: Solve for x
    x = 13,597,957,174.02/131,998.91
  6. Step 6: Final answer
    x = 103,015.68

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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.