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Finding the Fourth Proportional to 120,901.61, 166,844.41 and 67,185.25

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Solution

The fourth proportional to 120,901.61, 166,844.41 and 67,185.25 is: 92,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.61 : 166,844.41 = 67,185.25 : x
  2. Step 2: Convert to fraction form
    120,901.61/166,844.41 = 67,185.25/x
  3. Step 3: Cross multiply
    120,901.61x = 166,844.41 × 67,185.25
  4. Step 4: Simplify right side
    120,901.61x = 11,209,482,811.88
  5. Step 5: Solve for x
    x = 11,209,482,811.88/120,901.61
  6. Step 6: Final answer
    x = 92,715.74

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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.