Home / 135,301.34-186,713.06-74,871.94

Finding the Fourth Proportional to 135,301.34, 186,713.06 and 74,871.94

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Solution

The fourth proportional to 135,301.34, 186,713.06 and 74,871.94 is: 103,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,301.34 : 186,713.06 = 74,871.94 : x
  2. Step 2: Convert to fraction form
    135,301.34/186,713.06 = 74,871.94/x
  3. Step 3: Cross multiply
    135,301.34x = 186,713.06 × 74,871.94
  4. Step 4: Simplify right side
    135,301.34x = 13,979,569,025.54
  5. Step 5: Solve for x
    x = 13,979,569,025.54/135,301.34
  6. Step 6: Final answer
    x = 103,321.73

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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.