Home / 194,681.22-268,659.58-108,639.30

Finding the Fourth Proportional to 194,681.22, 268,659.58 and 108,639.30

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Solution

The fourth proportional to 194,681.22, 268,659.58 and 108,639.30 is: 149,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,681.22 : 268,659.58 = 108,639.30 : x
  2. Step 2: Convert to fraction form
    194,681.22/268,659.58 = 108,639.30/x
  3. Step 3: Cross multiply
    194,681.22x = 268,659.58 × 108,639.30
  4. Step 4: Simplify right side
    194,681.22x = 29,186,988,137.86
  5. Step 5: Solve for x
    x = 29,186,988,137.86/194,681.22
  6. Step 6: Final answer
    x = 149,921.95

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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.