Home / 187,712.52-258,979.86-107,083.32

Finding the Fourth Proportional to 187,712.52, 258,979.86 and 107,083.32

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Solution

The fourth proportional to 187,712.52, 258,979.86 and 107,083.32 is: 147,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,712.52 : 258,979.86 = 107,083.32 : x
  2. Step 2: Convert to fraction form
    187,712.52/258,979.86 = 107,083.32/x
  3. Step 3: Cross multiply
    187,712.52x = 258,979.86 × 107,083.32
  4. Step 4: Simplify right side
    187,712.52x = 27,732,423,221.94
  5. Step 5: Solve for x
    x = 27,732,423,221.94/187,712.52
  6. Step 6: Final answer
    x = 147,738.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.