Home / 135,207.49-202,725.37-71,988.61

Finding the Fourth Proportional to 135,207.49, 202,725.37 and 71,988.61

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Solution

The fourth proportional to 135,207.49, 202,725.37 and 71,988.61 is: 107,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,207.49 : 202,725.37 = 71,988.61 : x
  2. Step 2: Convert to fraction form
    135,207.49/202,725.37 = 71,988.61/x
  3. Step 3: Cross multiply
    135,207.49x = 202,725.37 × 71,988.61
  4. Step 4: Simplify right side
    135,207.49x = 14,593,917,598.04
  5. Step 5: Solve for x
    x = 14,593,917,598.04/135,207.49
  6. Step 6: Final answer
    x = 107,937.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.