Home / 120,269.12-165,968.91-66,550.95

Finding the Fourth Proportional to 120,269.12, 165,968.91 and 66,550.95

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Solution

The fourth proportional to 120,269.12, 165,968.91 and 66,550.95 is: 91,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,269.12 : 165,968.91 = 66,550.95 : x
  2. Step 2: Convert to fraction form
    120,269.12/165,968.91 = 66,550.95/x
  3. Step 3: Cross multiply
    120,269.12x = 165,968.91 × 66,550.95
  4. Step 4: Simplify right side
    120,269.12x = 11,045,388,630.96
  5. Step 5: Solve for x
    x = 11,045,388,630.96/120,269.12
  6. Step 6: Final answer
    x = 91,838.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.