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Finding the Fourth Proportional to 120,158.33, 165,821.33 and 66,444.39

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Solution

The fourth proportional to 120,158.33, 165,821.33 and 66,444.39 is: 91,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,158.33 : 165,821.33 = 66,444.39 : x
  2. Step 2: Convert to fraction form
    120,158.33/165,821.33 = 66,444.39/x
  3. Step 3: Cross multiply
    120,158.33x = 165,821.33 × 66,444.39
  4. Step 4: Simplify right side
    120,158.33x = 11,017,896,788.62
  5. Step 5: Solve for x
    x = 11,017,896,788.62/120,158.33
  6. Step 6: Final answer
    x = 91,694.83

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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.