Home / 123,452.91-170,412.26-75,771.05

Finding the Fourth Proportional to 123,452.91, 170,412.26 and 75,771.05

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Solution

The fourth proportional to 123,452.91, 170,412.26 and 75,771.05 is: 104,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,452.91 : 170,412.26 = 75,771.05 : x
  2. Step 2: Convert to fraction form
    123,452.91/170,412.26 = 75,771.05/x
  3. Step 3: Cross multiply
    123,452.91x = 170,412.26 × 75,771.05
  4. Step 4: Simplify right side
    123,452.91x = 12,912,314,642.16
  5. Step 5: Solve for x
    x = 12,912,314,642.16/123,452.91
  6. Step 6: Final answer
    x = 104,593.04

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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.