Home / 168,947.17-253,420.55-77,753.39

Finding the Fourth Proportional to 168,947.17, 253,420.55 and 77,753.39

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Solution

The fourth proportional to 168,947.17, 253,420.55 and 77,753.39 is: 116,629.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,947.17 : 253,420.55 = 77,753.39 : x
  2. Step 2: Convert to fraction form
    168,947.17/253,420.55 = 77,753.39/x
  3. Step 3: Cross multiply
    168,947.17x = 253,420.55 × 77,753.39
  4. Step 4: Simplify right side
    168,947.17x = 19,704,305,493.87
  5. Step 5: Solve for x
    x = 19,704,305,493.87/168,947.17
  6. Step 6: Final answer
    x = 116,629.98

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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.