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Finding the Fourth Proportional to 137,459.84, 206,215.68 and 43,940.48

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Solution

The fourth proportional to 137,459.84, 206,215.68 and 43,940.48 is: 65,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,459.84 : 206,215.68 = 43,940.48 : x
  2. Step 2: Convert to fraction form
    137,459.84/206,215.68 = 43,940.48/x
  3. Step 3: Cross multiply
    137,459.84x = 206,215.68 × 43,940.48
  4. Step 4: Simplify right side
    137,459.84x = 9,061,215,962.73
  5. Step 5: Solve for x
    x = 9,061,215,962.73/137,459.84
  6. Step 6: Final answer
    x = 65,919.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.