Home / 123,242.38-170,074.48-66,653.75

Finding the Fourth Proportional to 123,242.38, 170,074.48 and 66,653.75

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Solution

The fourth proportional to 123,242.38, 170,074.48 and 66,653.75 is: 91,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,242.38 : 170,074.48 = 66,653.75 : x
  2. Step 2: Convert to fraction form
    123,242.38/170,074.48 = 66,653.75/x
  3. Step 3: Cross multiply
    123,242.38x = 170,074.48 × 66,653.75
  4. Step 4: Simplify right side
    123,242.38x = 11,336,101,704.67
  5. Step 5: Solve for x
    x = 11,336,101,704.67/123,242.38
  6. Step 6: Final answer
    x = 91,982.18

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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.