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Finding the Fourth Proportional to 163,131.76, 225,247.80 and 131,449.42

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Solution

The fourth proportional to 163,131.76, 225,247.80 and 131,449.42 is: 181,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,131.76 : 225,247.80 = 131,449.42 : x
  2. Step 2: Convert to fraction form
    163,131.76/225,247.80 = 131,449.42/x
  3. Step 3: Cross multiply
    163,131.76x = 225,247.80 × 131,449.42
  4. Step 4: Simplify right side
    163,131.76x = 29,608,692,666.28
  5. Step 5: Solve for x
    x = 29,608,692,666.28/163,131.76
  6. Step 6: Final answer
    x = 181,501.71

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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.