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Finding the Fourth Proportional to 126,938, 175,174.44 and 70,357.88

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Solution

The fourth proportional to 126,938, 175,174.44 and 70,357.88 is: 97,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938 : 175,174.44 = 70,357.88 : x
  2. Step 2: Convert to fraction form
    126,938/175,174.44 = 70,357.88/x
  3. Step 3: Cross multiply
    126,938x = 175,174.44 × 70,357.88
  4. Step 4: Simplify right side
    126,938x = 12,324,902,228.59
  5. Step 5: Solve for x
    x = 12,324,902,228.59/126,938
  6. Step 6: Final answer
    x = 97,093.87

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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.