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Finding the Fourth Proportional to 127,144.78, 175,463.43 and 70,559.80

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Solution

The fourth proportional to 127,144.78, 175,463.43 and 70,559.80 is: 97,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,144.78 : 175,463.43 = 70,559.80 : x
  2. Step 2: Convert to fraction form
    127,144.78/175,463.43 = 70,559.80/x
  3. Step 3: Cross multiply
    127,144.78x = 175,463.43 × 70,559.80
  4. Step 4: Simplify right side
    127,144.78x = 12,380,664,528.11
  5. Step 5: Solve for x
    x = 12,380,664,528.11/127,144.78
  6. Step 6: Final answer
    x = 97,374.54

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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.