Home / 135,257.68-186,645.31-74,827.03

Finding the Fourth Proportional to 135,257.68, 186,645.31 and 74,827.03

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Solution

The fourth proportional to 135,257.68, 186,645.31 and 74,827.03 is: 103,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,257.68 : 186,645.31 = 74,827.03 : x
  2. Step 2: Convert to fraction form
    135,257.68/186,645.31 = 74,827.03/x
  3. Step 3: Cross multiply
    135,257.68x = 186,645.31 × 74,827.03
  4. Step 4: Simplify right side
    135,257.68x = 13,966,113,828.68
  5. Step 5: Solve for x
    x = 13,966,113,828.68/135,257.68
  6. Step 6: Final answer
    x = 103,255.61

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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.