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Finding the Fourth Proportional to 150,548.70, 207,742.23 and 86,907

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Solution

The fourth proportional to 150,548.70, 207,742.23 and 86,907 is: 119,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,548.70 : 207,742.23 = 86,907 : x
  2. Step 2: Convert to fraction form
    150,548.70/207,742.23 = 86,907/x
  3. Step 3: Cross multiply
    150,548.70x = 207,742.23 × 86,907
  4. Step 4: Simplify right side
    150,548.70x = 18,054,253,982.61
  5. Step 5: Solve for x
    x = 18,054,253,982.61/150,548.70
  6. Step 6: Final answer
    x = 119,923.01

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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.