Home / 113,319,428.70-169,979,143.05-72,504,759.90

Finding the Fourth Proportional to 113,319,428.70, 169,979,143.05 and 72,504,759.90

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Solution

The fourth proportional to 113,319,428.70, 169,979,143.05 and 72,504,759.90 is: 108,757,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,319,428.70 : 169,979,143.05 = 72,504,759.90 : x
  2. Step 2: Convert to fraction form
    113,319,428.70/169,979,143.05 = 72,504,759.90/x
  3. Step 3: Cross multiply
    113,319,428.70x = 169,979,143.05 × 72,504,759.90
  4. Step 4: Simplify right side
    113,319,428.70x = 12,324,296,954,848,006
  5. Step 5: Solve for x
    x = 12,324,296,954,848,006/113,319,428.70
  6. Step 6: Final answer
    x = 108,757,139.85

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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.