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Finding the Fourth Proportional to 120,304.59, 166,021.80 and 66,594.61

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Solution

The fourth proportional to 120,304.59, 166,021.80 and 66,594.61 is: 91,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,304.59 : 166,021.80 = 66,594.61 : x
  2. Step 2: Convert to fraction form
    120,304.59/166,021.80 = 66,594.61/x
  3. Step 3: Cross multiply
    120,304.59x = 166,021.80 × 66,594.61
  4. Step 4: Simplify right side
    120,304.59x = 11,056,157,022.50
  5. Step 5: Solve for x
    x = 11,056,157,022.50/120,304.59
  6. Step 6: Final answer
    x = 91,901.37

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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.