Home / 187,864.17-259,252.56-102,979.41

Finding the Fourth Proportional to 187,864.17, 259,252.56 and 102,979.41

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Solution

The fourth proportional to 187,864.17, 259,252.56 and 102,979.41 is: 142,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,864.17 : 259,252.56 = 102,979.41 : x
  2. Step 2: Convert to fraction form
    187,864.17/259,252.56 = 102,979.41/x
  3. Step 3: Cross multiply
    187,864.17x = 259,252.56 × 102,979.41
  4. Step 4: Simplify right side
    187,864.17x = 26,697,675,669.79
  5. Step 5: Solve for x
    x = 26,697,675,669.79/187,864.17
  6. Step 6: Final answer
    x = 142,111.59

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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.