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Finding the Fourth Proportional to 123,147.94, 169,944.18 and 66,559.32

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Solution

The fourth proportional to 123,147.94, 169,944.18 and 66,559.32 is: 91,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,147.94 : 169,944.18 = 66,559.32 : x
  2. Step 2: Convert to fraction form
    123,147.94/169,944.18 = 66,559.32/x
  3. Step 3: Cross multiply
    123,147.94x = 169,944.18 × 66,559.32
  4. Step 4: Simplify right side
    123,147.94x = 11,311,369,058.76
  5. Step 5: Solve for x
    x = 11,311,369,058.76/123,147.94
  6. Step 6: Final answer
    x = 91,851.87

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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.