Home / 123,964.36-171,071.44-67,375.76

Finding the Fourth Proportional to 123,964.36, 171,071.44 and 67,375.76

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Solution

The fourth proportional to 123,964.36, 171,071.44 and 67,375.76 is: 92,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,964.36 : 171,071.44 = 67,375.76 : x
  2. Step 2: Convert to fraction form
    123,964.36/171,071.44 = 67,375.76/x
  3. Step 3: Cross multiply
    123,964.36x = 171,071.44 × 67,375.76
  4. Step 4: Simplify right side
    123,964.36x = 11,526,068,284.29
  5. Step 5: Solve for x
    x = 11,526,068,284.29/123,964.36
  6. Step 6: Final answer
    x = 92,978.89

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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.