Home / 231,946.56-320,049.72-129,964.32

Finding the Fourth Proportional to 231,946.56, 320,049.72 and 129,964.32

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Solution

The fourth proportional to 231,946.56, 320,049.72 and 129,964.32 is: 179,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,946.56 : 320,049.72 = 129,964.32 : x
  2. Step 2: Convert to fraction form
    231,946.56/320,049.72 = 129,964.32/x
  3. Step 3: Cross multiply
    231,946.56x = 320,049.72 × 129,964.32
  4. Step 4: Simplify right side
    231,946.56x = 41,595,044,225.99
  5. Step 5: Solve for x
    x = 41,595,044,225.99/231,946.56
  6. Step 6: Final answer
    x = 179,330.29

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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.