Home / 120,759.52-166,532.04-72,353.62

Finding the Fourth Proportional to 120,759.52, 166,532.04 and 72,353.62

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Solution

The fourth proportional to 120,759.52, 166,532.04 and 72,353.62 is: 99,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.52 : 166,532.04 = 72,353.62 : x
  2. Step 2: Convert to fraction form
    120,759.52/166,532.04 = 72,353.62/x
  3. Step 3: Cross multiply
    120,759.52x = 166,532.04 × 72,353.62
  4. Step 4: Simplify right side
    120,759.52x = 12,049,195,939.98
  5. Step 5: Solve for x
    x = 12,049,195,939.98/120,759.52
  6. Step 6: Final answer
    x = 99,778.44

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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.