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Finding the Fourth Proportional to 123,027.77, 169,778.88 and 69,313.61

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Solution

The fourth proportional to 123,027.77, 169,778.88 and 69,313.61 is: 95,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.77 : 169,778.88 = 69,313.61 : x
  2. Step 2: Convert to fraction form
    123,027.77/169,778.88 = 69,313.61/x
  3. Step 3: Cross multiply
    123,027.77x = 169,778.88 × 69,313.61
  4. Step 4: Simplify right side
    123,027.77x = 11,767,987,074.56
  5. Step 5: Solve for x
    x = 11,767,987,074.56/123,027.77
  6. Step 6: Final answer
    x = 95,653.10

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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.