Home / 146,890.27-220,308.84-66,909.64

Finding the Fourth Proportional to 146,890.27, 220,308.84 and 66,909.64

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Solution

The fourth proportional to 146,890.27, 220,308.84 and 66,909.64 is: 100,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,890.27 : 220,308.84 = 66,909.64 : x
  2. Step 2: Convert to fraction form
    146,890.27/220,308.84 = 66,909.64/x
  3. Step 3: Cross multiply
    146,890.27x = 220,308.84 × 66,909.64
  4. Step 4: Simplify right side
    146,890.27x = 14,740,785,173.22
  5. Step 5: Solve for x
    x = 14,740,785,173.22/146,890.27
  6. Step 6: Final answer
    x = 100,352.36

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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.