Home / 187,485.62-258,729.99-105,831.06

Finding the Fourth Proportional to 187,485.62, 258,729.99 and 105,831.06

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Solution

The fourth proportional to 187,485.62, 258,729.99 and 105,831.06 is: 146,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,485.62 : 258,729.99 = 105,831.06 : x
  2. Step 2: Convert to fraction form
    187,485.62/258,729.99 = 105,831.06/x
  3. Step 3: Cross multiply
    187,485.62x = 258,729.99 × 105,831.06
  4. Step 4: Simplify right side
    187,485.62x = 27,381,667,728.39
  5. Step 5: Solve for x
    x = 27,381,667,728.39/187,485.62
  6. Step 6: Final answer
    x = 146,046.76

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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.