Home / 123,385.42-170,272.43-66,796.79

Finding the Fourth Proportional to 123,385.42, 170,272.43 and 66,796.79

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Solution

The fourth proportional to 123,385.42, 170,272.43 and 66,796.79 is: 92,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,385.42 : 170,272.43 = 66,796.79 : x
  2. Step 2: Convert to fraction form
    123,385.42/170,272.43 = 66,796.79/x
  3. Step 3: Cross multiply
    123,385.42x = 170,272.43 × 66,796.79
  4. Step 4: Simplify right side
    123,385.42x = 11,373,651,749.50
  5. Step 5: Solve for x
    x = 11,373,651,749.50/123,385.42
  6. Step 6: Final answer
    x = 92,179.87

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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.