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Finding the Fourth Proportional to 123,419.70, 185,129.55 and 123,419.70

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Solution

The fourth proportional to 123,419.70, 185,129.55 and 123,419.70 is: 185,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,419.70 : 185,129.55 = 123,419.70 : x
  2. Step 2: Convert to fraction form
    123,419.70/185,129.55 = 123,419.70/x
  3. Step 3: Cross multiply
    123,419.70x = 185,129.55 × 123,419.70
  4. Step 4: Simplify right side
    123,419.70x = 22,848,633,522.14
  5. Step 5: Solve for x
    x = 22,848,633,522.14/123,419.70
  6. Step 6: Final answer
    x = 185,129.55

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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.