Home / 231,944.21-320,082.84-129,970.47

Finding the Fourth Proportional to 231,944.21, 320,082.84 and 129,970.47

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Solution

The fourth proportional to 231,944.21, 320,082.84 and 129,970.47 is: 179,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,944.21 : 320,082.84 = 129,970.47 : x
  2. Step 2: Convert to fraction form
    231,944.21/320,082.84 = 129,970.47/x
  3. Step 3: Cross multiply
    231,944.21x = 320,082.84 × 129,970.47
  4. Step 4: Simplify right side
    231,944.21x = 41,601,318,354.05
  5. Step 5: Solve for x
    x = 41,601,318,354.05/231,944.21
  6. Step 6: Final answer
    x = 179,359.16

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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.