Home / 123,329.83-170,195.16-66,741.21

Finding the Fourth Proportional to 123,329.83, 170,195.16 and 66,741.21

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Solution

The fourth proportional to 123,329.83, 170,195.16 and 66,741.21 is: 92,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329.83 : 170,195.16 = 66,741.21 : x
  2. Step 2: Convert to fraction form
    123,329.83/170,195.16 = 66,741.21/x
  3. Step 3: Cross multiply
    123,329.83x = 170,195.16 × 66,741.21
  4. Step 4: Simplify right side
    123,329.83x = 11,359,030,914.54
  5. Step 5: Solve for x
    x = 11,359,030,914.54/123,329.83
  6. Step 6: Final answer
    x = 92,102.87

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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.