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Finding the Fourth Proportional to 123,352.58, 170,226.70 and 66,763.82

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Solution

The fourth proportional to 123,352.58, 170,226.70 and 66,763.82 is: 92,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,352.58 : 170,226.70 = 66,763.82 : x
  2. Step 2: Convert to fraction form
    123,352.58/170,226.70 = 66,763.82/x
  3. Step 3: Cross multiply
    123,352.58x = 170,226.70 × 66,763.82
  4. Step 4: Simplify right side
    123,352.58x = 11,364,984,757.99
  5. Step 5: Solve for x
    x = 11,364,984,757.99/123,352.58
  6. Step 6: Final answer
    x = 92,134.15

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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.