Home / 138,727.66-208,100.88-48,759.43

Finding the Fourth Proportional to 138,727.66, 208,100.88 and 48,759.43

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Solution

The fourth proportional to 138,727.66, 208,100.88 and 48,759.43 is: 73,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,727.66 : 208,100.88 = 48,759.43 : x
  2. Step 2: Convert to fraction form
    138,727.66/208,100.88 = 48,759.43/x
  3. Step 3: Cross multiply
    138,727.66x = 208,100.88 × 48,759.43
  4. Step 4: Simplify right side
    138,727.66x = 10,146,880,291.30
  5. Step 5: Solve for x
    x = 10,146,880,291.30/138,727.66
  6. Step 6: Final answer
    x = 73,142.45

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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.