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Finding the Fourth Proportional to 120,252.99, 165,937.25 and 66,530.55

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Solution

The fourth proportional to 120,252.99, 165,937.25 and 66,530.55 is: 91,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,252.99 : 165,937.25 = 66,530.55 : x
  2. Step 2: Convert to fraction form
    120,252.99/165,937.25 = 66,530.55/x
  3. Step 3: Cross multiply
    120,252.99x = 165,937.25 × 66,530.55
  4. Step 4: Simplify right side
    120,252.99x = 11,039,896,175.33
  5. Step 5: Solve for x
    x = 11,039,896,175.33/120,252.99
  6. Step 6: Final answer
    x = 91,805.59

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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.