Home / 187,356.18-258,535.83-105,679.92

Finding the Fourth Proportional to 187,356.18, 258,535.83 and 105,679.92

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Solution

The fourth proportional to 187,356.18, 258,535.83 and 105,679.92 is: 145,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,356.18 : 258,535.83 = 105,679.92 : x
  2. Step 2: Convert to fraction form
    187,356.18/258,535.83 = 105,679.92/x
  3. Step 3: Cross multiply
    187,356.18x = 258,535.83 × 105,679.92
  4. Step 4: Simplify right side
    187,356.18x = 27,322,045,831.53
  5. Step 5: Solve for x
    x = 27,322,045,831.53/187,356.18
  6. Step 6: Final answer
    x = 145,829.43

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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.