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Finding the Fourth Proportional to 123,028.27, 169,779.57 and 69,314.11

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Solution

The fourth proportional to 123,028.27, 169,779.57 and 69,314.11 is: 95,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,028.27 : 169,779.57 = 69,314.11 : x
  2. Step 2: Convert to fraction form
    123,028.27/169,779.57 = 69,314.11/x
  3. Step 3: Cross multiply
    123,028.27x = 169,779.57 × 69,314.11
  4. Step 4: Simplify right side
    123,028.27x = 11,768,119,790.73
  5. Step 5: Solve for x
    x = 11,768,119,790.73/123,028.27
  6. Step 6: Final answer
    x = 95,653.79

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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.