Home / 115,137.72-172,456.56-55,848.76

Finding the Fourth Proportional to 115,137.72, 172,456.56 and 55,848.76

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Solution

The fourth proportional to 115,137.72, 172,456.56 and 55,848.76 is: 83,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,137.72 : 172,456.56 = 55,848.76 : x
  2. Step 2: Convert to fraction form
    115,137.72/172,456.56 = 55,848.76/x
  3. Step 3: Cross multiply
    115,137.72x = 172,456.56 × 55,848.76
  4. Step 4: Simplify right side
    115,137.72x = 9,631,485,029.87
  5. Step 5: Solve for x
    x = 9,631,485,029.87/115,137.72
  6. Step 6: Final answer
    x = 83,651.87

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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.