Home / 123,412.01-170,309.39-66,823.38

Finding the Fourth Proportional to 123,412.01, 170,309.39 and 66,823.38

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Solution

The fourth proportional to 123,412.01, 170,309.39 and 66,823.38 is: 92,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,412.01 : 170,309.39 = 66,823.38 : x
  2. Step 2: Convert to fraction form
    123,412.01/170,309.39 = 66,823.38/x
  3. Step 3: Cross multiply
    123,412.01x = 170,309.39 × 66,823.38
  4. Step 4: Simplify right side
    123,412.01x = 11,380,648,751.42
  5. Step 5: Solve for x
    x = 11,380,648,751.42/123,412.01
  6. Step 6: Final answer
    x = 92,216.71

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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.