Home / 187,539.53-258,807.62-105,872.09

Finding the Fourth Proportional to 187,539.53, 258,807.62 and 105,872.09

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Solution

The fourth proportional to 187,539.53, 258,807.62 and 105,872.09 is: 146,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,539.53 : 258,807.62 = 105,872.09 : x
  2. Step 2: Convert to fraction form
    187,539.53/258,807.62 = 105,872.09/x
  3. Step 3: Cross multiply
    187,539.53x = 258,807.62 × 105,872.09
  4. Step 4: Simplify right side
    187,539.53x = 27,400,502,607.97
  5. Step 5: Solve for x
    x = 27,400,502,607.97/187,539.53
  6. Step 6: Final answer
    x = 146,105.21

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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.