Home / 123,396.87-170,287.74-66,808.29

Finding the Fourth Proportional to 123,396.87, 170,287.74 and 66,808.29

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Solution

The fourth proportional to 123,396.87, 170,287.74 and 66,808.29 is: 92,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,396.87 : 170,287.74 = 66,808.29 : x
  2. Step 2: Convert to fraction form
    123,396.87/170,287.74 = 66,808.29/x
  3. Step 3: Cross multiply
    123,396.87x = 170,287.74 × 66,808.29
  4. Step 4: Simplify right side
    123,396.87x = 11,376,632,717.36
  5. Step 5: Solve for x
    x = 11,376,632,717.36/123,396.87
  6. Step 6: Final answer
    x = 92,195.47

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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.