Home / 120,901.20-181,497.60-67,635.60

Finding the Fourth Proportional to 120,901.20, 181,497.60 and 67,635.60

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Solution

The fourth proportional to 120,901.20, 181,497.60 and 67,635.60 is: 101,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.20 : 181,497.60 = 67,635.60 : x
  2. Step 2: Convert to fraction form
    120,901.20/181,497.60 = 67,635.60/x
  3. Step 3: Cross multiply
    120,901.20x = 181,497.60 × 67,635.60
  4. Step 4: Simplify right side
    120,901.20x = 12,275,699,074.56
  5. Step 5: Solve for x
    x = 12,275,699,074.56/120,901.20
  6. Step 6: Final answer
    x = 101,534.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.