Home / 123,507.90-170,441.01-66,919.27

Finding the Fourth Proportional to 123,507.90, 170,441.01 and 66,919.27

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Solution

The fourth proportional to 123,507.90, 170,441.01 and 66,919.27 is: 92,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,507.90 : 170,441.01 = 66,919.27 : x
  2. Step 2: Convert to fraction form
    123,507.90/170,441.01 = 66,919.27/x
  3. Step 3: Cross multiply
    123,507.90x = 170,441.01 × 66,919.27
  4. Step 4: Simplify right side
    123,507.90x = 11,405,787,967.26
  5. Step 5: Solve for x
    x = 11,405,787,967.26/123,507.90
  6. Step 6: Final answer
    x = 92,348.65

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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.