Home / 175,260.78-262,930.05-81,715.50

Finding the Fourth Proportional to 175,260.78, 262,930.05 and 81,715.50

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Solution

The fourth proportional to 175,260.78, 262,930.05 and 81,715.50 is: 122,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,260.78 : 262,930.05 = 81,715.50 : x
  2. Step 2: Convert to fraction form
    175,260.78/262,930.05 = 81,715.50/x
  3. Step 3: Cross multiply
    175,260.78x = 262,930.05 × 81,715.50
  4. Step 4: Simplify right side
    175,260.78x = 21,485,460,500.78
  5. Step 5: Solve for x
    x = 21,485,460,500.78/175,260.78
  6. Step 6: Final answer
    x = 122,591.38

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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.