Home / 187,680.91-258,999.89-101,640.03

Finding the Fourth Proportional to 187,680.91, 258,999.89 and 101,640.03

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Solution

The fourth proportional to 187,680.91, 258,999.89 and 101,640.03 is: 140,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,680.91 : 258,999.89 = 101,640.03 : x
  2. Step 2: Convert to fraction form
    187,680.91/258,999.89 = 101,640.03/x
  3. Step 3: Cross multiply
    187,680.91x = 258,999.89 × 101,640.03
  4. Step 4: Simplify right side
    187,680.91x = 26,324,755,681.87
  5. Step 5: Solve for x
    x = 26,324,755,681.87/187,680.91
  6. Step 6: Final answer
    x = 140,263.36

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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.