Home / 187,661.75-258,973.23-102,781.85

Finding the Fourth Proportional to 187,661.75, 258,973.23 and 102,781.85

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Solution

The fourth proportional to 187,661.75, 258,973.23 and 102,781.85 is: 141,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,661.75 : 258,973.23 = 102,781.85 : x
  2. Step 2: Convert to fraction form
    187,661.75/258,973.23 = 102,781.85/x
  3. Step 3: Cross multiply
    187,661.75x = 258,973.23 × 102,781.85
  4. Step 4: Simplify right side
    187,661.75x = 26,617,747,679.88
  5. Step 5: Solve for x
    x = 26,617,747,679.88/187,661.75
  6. Step 6: Final answer
    x = 141,838.96

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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.