Home / 89,964.20-134,859.90-69,962.60

Finding the Fourth Proportional to 89,964.20, 134,859.90 and 69,962.60

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Solution

The fourth proportional to 89,964.20, 134,859.90 and 69,962.60 is: 104,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,964.20 : 134,859.90 = 69,962.60 : x
  2. Step 2: Convert to fraction form
    89,964.20/134,859.90 = 69,962.60/x
  3. Step 3: Cross multiply
    89,964.20x = 134,859.90 × 69,962.60
  4. Step 4: Simplify right side
    89,964.20x = 9,435,149,239.74
  5. Step 5: Solve for x
    x = 9,435,149,239.74/89,964.20
  6. Step 6: Final answer
    x = 104,876.71

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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.