Home / 187,428.60-258,656.04-106,863.75

Finding the Fourth Proportional to 187,428.60, 258,656.04 and 106,863.75

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Solution

The fourth proportional to 187,428.60, 258,656.04 and 106,863.75 is: 147,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,428.60 : 258,656.04 = 106,863.75 : x
  2. Step 2: Convert to fraction form
    187,428.60/258,656.04 = 106,863.75/x
  3. Step 3: Cross multiply
    187,428.60x = 258,656.04 × 106,863.75
  4. Step 4: Simplify right side
    187,428.60x = 27,640,954,394.55
  5. Step 5: Solve for x
    x = 27,640,954,394.55/187,428.60
  6. Step 6: Final answer
    x = 147,474.58

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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.