Home / 254,204.12-381,072.90-87,875.48

Finding the Fourth Proportional to 254,204.12, 381,072.90 and 87,875.48

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Solution

The fourth proportional to 254,204.12, 381,072.90 and 87,875.48 is: 131,732.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,204.12 : 381,072.90 = 87,875.48 : x
  2. Step 2: Convert to fraction form
    254,204.12/381,072.90 = 87,875.48/x
  3. Step 3: Cross multiply
    254,204.12x = 381,072.90 × 87,875.48
  4. Step 4: Simplify right side
    254,204.12x = 33,486,964,002.49
  5. Step 5: Solve for x
    x = 33,486,964,002.49/254,204.12
  6. Step 6: Final answer
    x = 131,732.58

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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.