Home / 89,272.20-133,713.90-79,422.60

Finding the Fourth Proportional to 89,272.20, 133,713.90 and 79,422.60

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Solution

The fourth proportional to 89,272.20, 133,713.90 and 79,422.60 is: 118,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,272.20 : 133,713.90 = 79,422.60 : x
  2. Step 2: Convert to fraction form
    89,272.20/133,713.90 = 79,422.60/x
  3. Step 3: Cross multiply
    89,272.20x = 133,713.90 × 79,422.60
  4. Step 4: Simplify right side
    89,272.20x = 10,619,905,594.14
  5. Step 5: Solve for x
    x = 10,619,905,594.14/89,272.20
  6. Step 6: Final answer
    x = 118,960.95

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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.