Home / 123,857.12-170,924.08-67,269.60

Finding the Fourth Proportional to 123,857.12, 170,924.08 and 67,269.60

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Solution

The fourth proportional to 123,857.12, 170,924.08 and 67,269.60 is: 92,832.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,857.12 : 170,924.08 = 67,269.60 : x
  2. Step 2: Convert to fraction form
    123,857.12/170,924.08 = 67,269.60/x
  3. Step 3: Cross multiply
    123,857.12x = 170,924.08 × 67,269.60
  4. Step 4: Simplify right side
    123,857.12x = 11,497,994,491.97
  5. Step 5: Solve for x
    x = 11,497,994,491.97/123,857.12
  6. Step 6: Final answer
    x = 92,832.73

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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.