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Finding the Fourth Proportional to 123,861.53, 170,922.53 and 67,272.77

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Solution

The fourth proportional to 123,861.53, 170,922.53 and 67,272.77 is: 92,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,861.53 : 170,922.53 = 67,272.77 : x
  2. Step 2: Convert to fraction form
    123,861.53/170,922.53 = 67,272.77/x
  3. Step 3: Cross multiply
    123,861.53x = 170,922.53 × 67,272.77
  4. Step 4: Simplify right side
    123,861.53x = 11,498,430,857.53
  5. Step 5: Solve for x
    x = 11,498,430,857.53/123,861.53
  6. Step 6: Final answer
    x = 92,832.95

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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.