Home / 123,329-170,195.25-66,741.59

Finding the Fourth Proportional to 123,329, 170,195.25 and 66,741.59

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Solution

The fourth proportional to 123,329, 170,195.25 and 66,741.59 is: 92,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329 : 170,195.25 = 66,741.59 : x
  2. Step 2: Convert to fraction form
    123,329/170,195.25 = 66,741.59/x
  3. Step 3: Cross multiply
    123,329x = 170,195.25 × 66,741.59
  4. Step 4: Simplify right side
    123,329x = 11,359,101,595.45
  5. Step 5: Solve for x
    x = 11,359,101,595.45/123,329
  6. Step 6: Final answer
    x = 92,104.06

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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.