Home / 187,686.81-258,997.77-102,787.47

Finding the Fourth Proportional to 187,686.81, 258,997.77 and 102,787.47

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Solution

The fourth proportional to 187,686.81, 258,997.77 and 102,787.47 is: 141,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,686.81 : 258,997.77 = 102,787.47 : x
  2. Step 2: Convert to fraction form
    187,686.81/258,997.77 = 102,787.47/x
  3. Step 3: Cross multiply
    187,686.81x = 258,997.77 × 102,787.47
  4. Step 4: Simplify right side
    187,686.81x = 26,621,725,513.94
  5. Step 5: Solve for x
    x = 26,621,725,513.94/187,686.81
  6. Step 6: Final answer
    x = 141,841.22

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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.