Home / 123,489.32-170,414.68-66,900.84

Finding the Fourth Proportional to 123,489.32, 170,414.68 and 66,900.84

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Solution

The fourth proportional to 123,489.32, 170,414.68 and 66,900.84 is: 92,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489.32 : 170,414.68 = 66,900.84 : x
  2. Step 2: Convert to fraction form
    123,489.32/170,414.68 = 66,900.84/x
  3. Step 3: Cross multiply
    123,489.32x = 170,414.68 × 66,900.84
  4. Step 4: Simplify right side
    123,489.32x = 11,400,885,240.33
  5. Step 5: Solve for x
    x = 11,400,885,240.33/123,489.32
  6. Step 6: Final answer
    x = 92,322.84

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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.