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Finding the Fourth Proportional to 98,839.70, 148,194.03 and 54,487.70

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Solution

The fourth proportional to 98,839.70, 148,194.03 and 54,487.70 is: 81,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,839.70 : 148,194.03 = 54,487.70 : x
  2. Step 2: Convert to fraction form
    98,839.70/148,194.03 = 54,487.70/x
  3. Step 3: Cross multiply
    98,839.70x = 148,194.03 × 54,487.70
  4. Step 4: Simplify right side
    98,839.70x = 8,074,751,848.43
  5. Step 5: Solve for x
    x = 8,074,751,848.43/98,839.70
  6. Step 6: Final answer
    x = 81,695.43

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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.