Home / 123,736.50-170,751.75-67,146.66

Finding the Fourth Proportional to 123,736.50, 170,751.75 and 67,146.66

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Solution

The fourth proportional to 123,736.50, 170,751.75 and 67,146.66 is: 92,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,736.50 : 170,751.75 = 67,146.66 : x
  2. Step 2: Convert to fraction form
    123,736.50/170,751.75 = 67,146.66/x
  3. Step 3: Cross multiply
    123,736.50x = 170,751.75 × 67,146.66
  4. Step 4: Simplify right side
    123,736.50x = 11,465,409,701.66
  5. Step 5: Solve for x
    x = 11,465,409,701.66/123,736.50
  6. Step 6: Final answer
    x = 92,659.88

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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.