Home / 117,064.08-161,538.23-68,675.76

Finding the Fourth Proportional to 117,064.08, 161,538.23 and 68,675.76

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Solution

The fourth proportional to 117,064.08, 161,538.23 and 68,675.76 is: 94,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,064.08 : 161,538.23 = 68,675.76 : x
  2. Step 2: Convert to fraction form
    117,064.08/161,538.23 = 68,675.76/x
  3. Step 3: Cross multiply
    117,064.08x = 161,538.23 × 68,675.76
  4. Step 4: Simplify right side
    117,064.08x = 11,093,760,885.99
  5. Step 5: Solve for x
    x = 11,093,760,885.99/117,064.08
  6. Step 6: Final answer
    x = 94,766.57

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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.