Home / 123,317.92-170,179.18-66,729.30

Finding the Fourth Proportional to 123,317.92, 170,179.18 and 66,729.30

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Solution

The fourth proportional to 123,317.92, 170,179.18 and 66,729.30 is: 92,086.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,317.92 : 170,179.18 = 66,729.30 : x
  2. Step 2: Convert to fraction form
    123,317.92/170,179.18 = 66,729.30/x
  3. Step 3: Cross multiply
    123,317.92x = 170,179.18 × 66,729.30
  4. Step 4: Simplify right side
    123,317.92x = 11,355,936,705.08
  5. Step 5: Solve for x
    x = 11,355,936,705.08/123,317.92
  6. Step 6: Final answer
    x = 92,086.67

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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.