Home / 135,318.43-186,738.27-74,887.54

Finding the Fourth Proportional to 135,318.43, 186,738.27 and 74,887.54

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Solution

The fourth proportional to 135,318.43, 186,738.27 and 74,887.54 is: 103,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,318.43 : 186,738.27 = 74,887.54 : x
  2. Step 2: Convert to fraction form
    135,318.43/186,738.27 = 74,887.54/x
  3. Step 3: Cross multiply
    135,318.43x = 186,738.27 × 74,887.54
  4. Step 4: Simplify right side
    135,318.43x = 13,984,369,664.16
  5. Step 5: Solve for x
    x = 13,984,369,664.16/135,318.43
  6. Step 6: Final answer
    x = 103,344.16

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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.