Home / 123,788.28-170,827.38-67,199.64

Finding the Fourth Proportional to 123,788.28, 170,827.38 and 67,199.64

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Solution

The fourth proportional to 123,788.28, 170,827.38 and 67,199.64 is: 92,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,788.28 : 170,827.38 = 67,199.64 : x
  2. Step 2: Convert to fraction form
    123,788.28/170,827.38 = 67,199.64/x
  3. Step 3: Cross multiply
    123,788.28x = 170,827.38 × 67,199.64
  4. Step 4: Simplify right side
    123,788.28x = 11,479,538,438.14
  5. Step 5: Solve for x
    x = 11,479,538,438.14/123,788.28
  6. Step 6: Final answer
    x = 92,735.26

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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.