Home / 115,288.66-171,786.90-102,712.04

Finding the Fourth Proportional to 115,288.66, 171,786.90 and 102,712.04

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Solution

The fourth proportional to 115,288.66, 171,786.90 and 102,712.04 is: 153,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,288.66 : 171,786.90 = 102,712.04 : x
  2. Step 2: Convert to fraction form
    115,288.66/171,786.90 = 102,712.04/x
  3. Step 3: Cross multiply
    115,288.66x = 171,786.90 × 102,712.04
  4. Step 4: Simplify right side
    115,288.66x = 17,644,582,944.28
  5. Step 5: Solve for x
    x = 17,644,582,944.28/115,288.66
  6. Step 6: Final answer
    x = 153,046.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.