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Finding the Fourth Proportional to 123,563.88, 185,279.40 and 39,301.20

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Solution

The fourth proportional to 123,563.88, 185,279.40 and 39,301.20 is: 58,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,563.88 : 185,279.40 = 39,301.20 : x
  2. Step 2: Convert to fraction form
    123,563.88/185,279.40 = 39,301.20/x
  3. Step 3: Cross multiply
    123,563.88x = 185,279.40 × 39,301.20
  4. Step 4: Simplify right side
    123,563.88x = 7,281,702,755.28
  5. Step 5: Solve for x
    x = 7,281,702,755.28/123,563.88
  6. Step 6: Final answer
    x = 58,930.67

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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.