Home / 187,144.75-258,260.42-102,261.81

Finding the Fourth Proportional to 187,144.75, 258,260.42 and 102,261.81

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Solution

The fourth proportional to 187,144.75, 258,260.42 and 102,261.81 is: 141,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,144.75 : 258,260.42 = 102,261.81 : x
  2. Step 2: Convert to fraction form
    187,144.75/258,260.42 = 102,261.81/x
  3. Step 3: Cross multiply
    187,144.75x = 258,260.42 × 102,261.81
  4. Step 4: Simplify right side
    187,144.75x = 26,410,179,224.69
  5. Step 5: Solve for x
    x = 26,410,179,224.69/187,144.75
  6. Step 6: Final answer
    x = 141,121.67

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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.