Home / 187,121.76-258,229.44-102,238.72

Finding the Fourth Proportional to 187,121.76, 258,229.44 and 102,238.72

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Solution

The fourth proportional to 187,121.76, 258,229.44 and 102,238.72 is: 141,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,121.76 : 258,229.44 = 102,238.72 : x
  2. Step 2: Convert to fraction form
    187,121.76/258,229.44 = 102,238.72/x
  3. Step 3: Cross multiply
    187,121.76x = 258,229.44 × 102,238.72
  4. Step 4: Simplify right side
    187,121.76x = 26,401,047,411.92
  5. Step 5: Solve for x
    x = 26,401,047,411.92/187,121.76
  6. Step 6: Final answer
    x = 141,090.20

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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.