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Finding the Fourth Proportional to 120,218.58, 165,913.98 and 69,233.22

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Solution

The fourth proportional to 120,218.58, 165,913.98 and 69,233.22 is: 95,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,218.58 : 165,913.98 = 69,233.22 : x
  2. Step 2: Convert to fraction form
    120,218.58/165,913.98 = 69,233.22/x
  3. Step 3: Cross multiply
    120,218.58x = 165,913.98 × 69,233.22
  4. Step 4: Simplify right side
    120,218.58x = 11,486,759,078.42
  5. Step 5: Solve for x
    x = 11,486,759,078.42/120,218.58
  6. Step 6: Final answer
    x = 95,548.95

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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.