Home / 90,100.12-135,172.16-63,497.96

Finding the Fourth Proportional to 90,100.12, 135,172.16 and 63,497.96

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Solution

The fourth proportional to 90,100.12, 135,172.16 and 63,497.96 is: 95,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.12 : 135,172.16 = 63,497.96 : x
  2. Step 2: Convert to fraction form
    90,100.12/135,172.16 = 63,497.96/x
  3. Step 3: Cross multiply
    90,100.12x = 135,172.16 × 63,497.96
  4. Step 4: Simplify right side
    90,100.12x = 8,583,156,408.79
  5. Step 5: Solve for x
    x = 8,583,156,408.79/90,100.12
  6. Step 6: Final answer
    x = 95,262.43

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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.