Home / 123,317.67-170,178.83-66,729.04

Finding the Fourth Proportional to 123,317.67, 170,178.83 and 66,729.04

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Solution

The fourth proportional to 123,317.67, 170,178.83 and 66,729.04 is: 92,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,317.67 : 170,178.83 = 66,729.04 : x
  2. Step 2: Convert to fraction form
    123,317.67/170,178.83 = 66,729.04/x
  3. Step 3: Cross multiply
    123,317.67x = 170,178.83 × 66,729.04
  4. Step 4: Simplify right side
    123,317.67x = 11,355,870,546.49
  5. Step 5: Solve for x
    x = 11,355,870,546.49/123,317.67
  6. Step 6: Final answer
    x = 92,086.32

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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.