Home / 187,679.48-258,997.27-101,638.20

Finding the Fourth Proportional to 187,679.48, 258,997.27 and 101,638.20

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Solution

The fourth proportional to 187,679.48, 258,997.27 and 101,638.20 is: 140,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,679.48 : 258,997.27 = 101,638.20 : x
  2. Step 2: Convert to fraction form
    187,679.48/258,997.27 = 101,638.20/x
  3. Step 3: Cross multiply
    187,679.48x = 258,997.27 × 101,638.20
  4. Step 4: Simplify right side
    187,679.48x = 26,324,015,778.57
  5. Step 5: Solve for x
    x = 26,324,015,778.57/187,679.48
  6. Step 6: Final answer
    x = 140,260.49

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1.5x scale

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.